2012 GMC Sierra 3500 HD Shocks and Struts

Keep Your 2012 GMC Sierra 3500 HD in Top Shape with Quality Shocks and Struts

Whether you’re repairing or upgrading your Shocks and Strut, using high-quality parts is key to keeping your 2012 GMC Sierra 3500 HD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Strut Bellows, Rear Shock and Struts, and Helper Springs. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Shocks and Struts from Trusted Brands

Looking for a reliable Shocks and Strut? We’ve got you covered with options from brands you know and trust like Monroe and Rancho. For example, Monroe Shocks and Struts start at just $26.99 with an average 4.4 star rating. Rancho offer similar pricing and quality, backed by strong customer feedback. With over 840 reviews and a solid 4 star average, you can shop with confidence knowing other GMC Sierra 3500 HD owners approve.

Explore Related Parts

While you’re upgrading or replacing your Shocks and Strut, don’t forget to check out other key components like Air Suspension and Kits and Coil and Leaf Springs. At Advance Auto Parts, we’re here to help you keep your 2012 GMC Sierra 3500 HD in peak condition, inside and out.

Essential 2012 GMC Sierra 3500 HD Shocks and Struts

Monroe – Shock-Mate Suspension Shock Absorber Bellows (Part No.SA1998)

Shock-Mate Suspension Shock Absorber Bellows

from

$24.99
Monroe® Shock-Mate® Shock Absorber Boot Kits are universal replacement shock boots use to protect the shock’s piston rod from dirt, mud and other contaminants – protecting the life of your shocks.

Product Features:
  • Protects the shock’s piston rod from damage
  • Universal design for easy installation
  • Tie-strap included for a secure fit
  • Constructed from high quality urethane for maximum durability
  • Multiple color choices available
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Monroe – Shock-Mate Suspension Shock Absorber Bellows (Part No.SA1997)

Shock-Mate Suspension Shock Absorber Bellows

from

$26.99
Monroe® Shock-Mate® Shock Absorber Boot Kits are universal replacement shock boots use to protect the shock’s piston rod from dirt, mud and other contaminants – protecting the life of your shocks.

Product Features:
  • Protects the shock’s piston rod from damage
  • Universal design for easy installation
  • Tie-strap included for a secure fit
  • Constructed from high quality urethane for maximum durability
  • Multiple color choices available
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Dorman – Help – SHOCK BOLT KIT (Part No.13863)

SHOCK BOLT KIT

from

$19.49
This suspension shock absorber mounting bolt is designed to match the performance of an original equipment bolt on specified vehicle makes, models and years. When a factory bolt is rusted, damaged, missing or due for replacement during shock absorber installation or service, this bolt is a reliable replacement. It is manufactured from quality materials for long service life and a professional repair.

Product Features:
  • Direct replacement – this suspension shock absorber mounting bolt is designed to match the performance of an original equipment bolt on specified vehicle makes, models and years
  • Secures shock absorber – when a factory bolt is rusted, damaged, missing or due for replacement during shock absorber installation or service, this bolt is a reliable replacement
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Rancho – Suspension Shock Absorber RS9000XL (Part No.RS999379)

Suspension Shock Absorber RS9000XL

from

$146.99
Get premium control and performance with Rancho RS9000XL shocks. Recognized as the first nine-position manually adjustable ride control series in the off-road market, RS9000XL shocks are ideal for on-road and off-road use, towing and more.

Product Features:
  • NINE LEVELS OF PERFORMANCE – Nine-position easy-to-adjust knob allows customized damping control and firmness for on-road and off-road flexibility
  • DESIGNED FOR HARDWORKING VEHICLES – Ideal for stock or lifted trucks, SUVs and Jeeps that tow, haul or go off road
  • INDUSTRY FIRST – Recognized as the first nine-position manually adjustable shock series in the off-road market
  • REDUCES FADE – Nitrogen gas pressurized to 120 PSI to minimize air-to-oil mixture and reduce damping performance fade and foaming
  • STRONG AND DURABLE – Features an application-specific 18mm nitro-carburized piston rod to resist scuffs and corrosion, double-welded loops at stress areas and 1.25-in. sintered iron piston for enhanced structural integrity
  • HANDLES EXTREME TEMPERATURE CHANGES – Up to 2.75-in. tri-tube body (application specific) filled with all-weather fluid allows for cooler operation.
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and bushings and graphite-filled fluon-banded piston help absorb ride harshness and enhance responsiveness to changing road conditions for an overall smoother ride
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the long-lasting premium liquid metallic finish and polyvinyl protective boot ensures longer life
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
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Rancho – Suspension Shock Absorber RS9000XL (Part No.RS999262)

Suspension Shock Absorber RS9000XL

from

$167.99
Get premium control and performance with Rancho RS9000XL shocks. Recognized as the first nine-position manually adjustable ride control series in the off-road market, RS9000XL shocks are ideal for on-road and off-road use, towing and more.

Product Features:
  • NINE LEVELS OF PERFORMANCE – Nine-position easy-to-adjust knob allows customized damping control and firmness for on-road and off-road flexibility
  • DESIGNED FOR HARDWORKING VEHICLES – Ideal for stock or lifted trucks, SUVs and Jeeps that tow, haul or go off road
  • INDUSTRY FIRST – Recognized as the first nine-position manually adjustable shock series in the off-road market
  • REDUCES FADE – Nitrogen gas pressurized to 120 PSI to minimize air-to-oil mixture and reduce damping performance fade and foaming
  • STRONG AND DURABLE – Features an application-specific 18mm nitro-carburized piston rod to resist scuffs and corrosion, double-welded loops at stress areas and 1.25-in. sintered iron piston for enhanced structural integrity
  • HANDLES EXTREME TEMPERATURE CHANGES – Up to 2.75-in. tri-tube body (application specific) filled with all-weather fluid allows for cooler operation.
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and bushings and graphite-filled fluon-banded piston help absorb ride harshness and enhance responsiveness to changing road conditions for an overall smoother ride
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the long-lasting premium liquid metallic finish and polyvinyl protective boot ensures longer life
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

Monroe – Gas-Magnum Suspension Shock Absorber (Part No.34694)

Gas-Magnum Suspension Shock Absorber

from

$92.99
Designed for midsize and full-size trucks and vans, Monroe Gas-Magnum shock absorbers provide firm control without a harsh ride. With up to twice the fluid capacity of standard 1-in. bore shocks, they work more efficiently with less effort.

Product Features:
  • DESIGNED FOR TRUCKS AND VANS – Engineered for hardworking full-size trucks and vans and features full-displaced valving on compression cycles to deliver controlled ride and handling
  • BUILT TO LAST – Heavy-duty nitrocarburized rod (non-dust shield units only) and sintered iron piston enhance durability for longer service life while self-lubricating fluid seal reduces friction against piston rod to reduce wear
  • CONSISTENT RIDE – OE all-weather fluid contains special modifiers to handle extreme temperatures and help reduce friction and ensure smooth rod reaction
  • IMPROVES PERFORMANCE – Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • LONGER SERVICE LIFE – Larger bore and bigger 2-in. reserve tube work together to hold more oil for greater capacity to allow the shock to work efficiently for controlled ride and longer service life
  • BUY WITH CONFIDENCE – Comes with Monroe’s Limited Warranty and exclusive Feel the Difference
  • Sintered Iron Piston: Stronger than traditional metals, enhances durability for longer service life.
  • Special Seal: ‘Self-lubricating’ fluid seal designed to retain gas without excessive wear or friction.
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Monroe – Gas-Matic LT Suspension Shock Absorber (Part No.59605)

Gas-Matic LT Suspension Shock Absorber

from

$40.99
Gas-charged shock absorber that provides improved vehicle control for today’s light trucks, vans, full-size picks-ups and 4×4’s at an economical price.

Product Features:
  • Available for import and domestic trucks, vans, full-size pick-ups and 4×4’s
  • Gas-charged unit
  • Improved handling and control
  • Economical OE replacement
  • Meets OE product specifications
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Skyjacker – Hydro Shock W/Red Boot (Part No.H7036)

Hydro Shock W/Red Boot

from

$71.99
HYDRO H7000 series shocks are recommended for multiple shock applications and mild to moderate off-road use. Skyjacker(R) hydro shocks, Skyjacker(R) suspensions offers you a high quality shock absorber with true velocity sensitive valving. Shock absorbers, or spring dampers as it is called everywhere else except in the U.S, control the rate at which suspension springs compress and rebound. As the shock is pushed together, this is called bump or compression. As the shock expands, this is called rebound or extension. Absorbing the shock of bumps and suspension loading is actually performed by the springs in the suspension. The shock real job is controlling the energy stored in the springs. The performance specific internal components of Skyjacker shocks respond to the on- and off-road conditions instantly. Whether you are going over rough or smooth terrain at slow or fast speeds, the true velocity sensitive valving produces a stable, controlled level of resistance for better handling, improved stability, and maximum comfort. The technological innovations of these durable, long lasting shocks from Skyjacker(R) deliver a noticeable advantage over the original equipment and other shock dampeners. Skyjacker shock absorbers deliver a safe, comfortable ride with improved handling and stability. They keep the tires in contact with the terrain and put you in control of the road ahead

Product Features:
  • Hydraulic Action. Leak Proof Seal Prevents Hydraulic Fluid From Passing Around Piston Head For A Consistent And Reliable Ride
  • Multi Stage Velocity Sensitive Valving
  • Twin Tube Construction. DOM Tubing Reduces Internal Wear For Longer Product Life
  • Bonded Iron Piston For Durability And Longer Shock Life
  • Chromed Piston Rod Features Micro Polished Shaft For Improved Product Life And Performance
  • Orifice Disk For Axle Control In Any Condition
  • Red Polyurethane Bushings
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Rancho – RS5000X Suspension Shock Absorber (Part No.RS55381)

RS5000X Suspension Shock Absorber

from

$94.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho RS5000X shocks deliver improved overall on- and off-road handling and performance.

Product Features:
  • IMPROVED HANDLING AND PERFORMANCE – Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road
  • MINIMIZES ROUGH RIDE – Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride
  • STRONG AND DURABLE – Features a 16mm nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, 35mm sintered iron piston for enhanced structural integrity and polyvinyl protective boot
  • HANDLES EXTREME TEMPERATURE CHANGES – Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • REDUCES FADE – Nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming
  • MAINTAINS VEHICLE CONTROL – Compression Control Valve is custom-tuned for each vehicle to regulate fluid transfer to absorb impacts without disc flutter and help maintain shock motion control
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the application-specific piston delivers heightened control of shock motion due to the expanded piston area
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
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FOX Offroad Shocks – Hydraulic/ Nitrogen Gas Charged, Without Reservoir, Silver Shock Body, Single (Part No.985-24-240)

Hydraulic/ Nitrogen Gas Charged, Without Reservoir, Silver Shock Body, Single

from

$271.99
The aluminum bodied Performance Series 2.0 Reservoir smooth body shock delivers FOX industry leading and race dominating performance in an affordable, hassle-free bolt on package. Its heat reducing design includes a metal impacted clear anodized aluminum shock body that dissipates heat faster than a conventional steel body shock. Its external reservoir allows for increase oil and nitrogen capacity while delivering striking race look. The included black anodized reservoir mounting clamp and other components are CNC machined from 6061-T6 aluminum. The race developed high flow damping piston matched with application specific valving provides the Performance Series 2.0 Reservoir shock a predicable ride quality capable of handling the roughest road conditions.

Product Features:
  • Body: Metal Impacted 6061-T6 Aluminum Will Resist Rust Over Time, Clear-Anodized For A Durable Finish
  • Internal IFP Mono-Tube Reservoir Design Separates Shock Oil From The High-Pressure Nitrogen
  • Components, Black-Anodized, CNC-Machined 6061-T6 Billet Aluminum
  • Shaft 5/8 Inch Hard Chrome Plated Heat-Treated Alloy Steel
  • Race-Developed High-Flow Piston Design
  • Application Specific Valving To Maximize Performance
  • Seals, Redundant Sealing Pack System Main Seal, Wiper Seal, Scraper Seal
  • Oil, JM92 Advanced Suspension Fluid For Improved Performance At Variable Temperatures
  • Bushings, Quiet Nitrile Rubber Allows For Increased Suspension Articulation
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FOX Offroad Shocks – Hydraulic, Adjustable Valving, 20.28"H Extend/13.68"H Compress, Aluminum, Single (Part No.985-24-189)

Hydraulic, Adjustable Valving, 20.28"H Extend/13.68"H Compress, Aluminum, Single

from

$271.99
Product Features:
  • Body 2.0 Inch Impact Extruded And CNC Machined 6061-T6 Clear Anodized Aluminum One-Piece Body Resists Rust Over Time
  • Body Plating Clear-Anodized For A Durable Finish
  • Reservoir Internal IFP Mono-Tube Reservoir Design
  • Shaft 5/8 Inch Hard Chrome Plated Heat Treated Alloy Steel
  • Piston Race-Developed High-Flow Piston Design
  • Seals Redundant Sealing Pack System Main Seal, Wiper Seal, Scraper Seal
  • Oil JM92 Advanced Suspension Fluid For Improved Performance At Variable Temperatures
  • Bushings Quiet Nitrile Rubber Allows For Increased Suspension Articulation
  • Limited 1 Year Warranty
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Dorman – Magnetic Ride Control Shock: Front, With Connector, OE Fix (Part No.949-700)

Magnetic Ride Control Shock: Front, With Connector, OE Fix

from

$675.99
This shock absorber is designed to match the fit and function of the original part on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this magnetic ride shock absorber features the same advanced technology as the original equipment on specific vehicles.
  • Restores performance – magnetic shocks react far faster than conventional shocks – as fast as 1/1,000th of a second.
  • Smart solution – offers like-new ride quality, handling and safety for far less than dealership replacement
  • Maintains value – replacing worn magnetic shocks preserves the resale value for vehicles originally equipped with this expensive option
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Monroe – Reflex Suspension Shock Absorber (Part No.911447)

Reflex Suspension Shock Absorber

from

$171.99
Ideal for vehicles with a higher center of gravity, Monroe Reflex light truck shock absorbers feature ASD valving technology that automatically adjusts the unit to absorb the impact, helping to reduce vehicle roll and dive.

Product Features:
  • IMPROVES STABILITY – ASD (Acceleration Sensitive Damping) valving technology adjusts to impacts, reducing roll and dive for vehicles with a higher center of gravity
  • EXCEPTIONAL HANDLING – Full displaced valving, tuned specifically to each vehicle, adjusts to road extremes while the larger bore provides more efficient damping control to provide consistency and a smooth ride
  • CONSISTENT RIDE – OE all-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger reserve tube holds more fluid to run cooler
  • CONTROL AND DURABILITY – Fluon-banded piston provides consistent sealing between piston and pressure tube for better control and increased durability
  • IMPROVES PERFORMANCE – Nitrogen gas charge maintains tire-to-road contact for improved ride and handling by reducing aeration
  • BUILT TO LAST – Self-lubricating fluid seal retains gas and reduces excessive friction against the piston rod to help reduce premature wear
  • BUY WITH CONFIDENCE – Comes with Monroe’s Limited Warranty and exclusive Feel the Difference
  • 5/8 inch Piston Rod: Heavy-duty nitrocarburized rod for long service life. On non-dust shield units only
  • Special Seal: ‘Self-lubricating’ fluid seal designed to retain gas without excessive wear or friction.
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Monroe – Reflex Front Suspension Shock Absorber (Part No.911181)

Reflex Front Suspension Shock Absorber

from

$109.99
Ideal for vehicles with a higher center of gravity, Monroe Reflex light truck shock absorbers feature ASD valving technology that automatically adjusts the unit to absorb the impact, helping to reduce vehicle roll and dive.

Product Features:
  • IMPROVES STABILITY – ASD (Acceleration Sensitive Damping) valving technology adjusts to impacts, reducing roll and dive for vehicles with a higher center of gravity
  • EXCEPTIONAL HANDLING – Full displaced valving, tuned specifically to each vehicle, adjusts to road extremes while the larger bore provides more efficient damping control to provide consistency and a smooth ride
  • CONSISTENT RIDE – OE all-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger reserve tube holds more fluid to run cooler
  • CONTROL AND DURABILITY – Fluon-banded piston provides consistent sealing between piston and pressure tube for better control and increased durability
  • IMPROVES PERFORMANCE – Nitrogen gas charge maintains tire-to-road contact for improved ride and handling by reducing aeration
  • BUILT TO LAST – Self-lubricating fluid seal retains gas and reduces excessive friction against the piston rod to help reduce premature wear
  • BUY WITH CONFIDENCE – Comes with Monroe’s Limited Warranty and exclusive Feel the Difference
  • 5/8 inch Piston Rod: Heavy-duty nitrocarburized rod for long service life. On non-dust shield units only
  • Special Seal: ‘Self-lubricating’ fluid seal designed to retain gas without excessive wear or friction.
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Rancho – RS7MT Suspension Shock Absorber (Part No.RS77377)

RS7MT Suspension Shock Absorber

from

$108.99
Application tuned for precision on-road and off-road handling, Rancho® RS7MT® monotube shocks are highly effective in the dissipation of heat, making them ideal for extreme off-road use and larger wheel and tire packages. RS7MT shocks feature an integrated dirt wiper sealing system that keeps dirt and debris out, hardened piston rod that resists scuffs and corrosion plus an internal rebound bumper to smooth out your ride on any terrain.

Product Features:
  • PRECISE HANDLING AND PERFORMANCE — Deflective Disc Valving features digressive, linear or progressive tuning based on application requirements for precision handling and performance on- and off-road
  • STRONG AND DURABLE — Features a 14mm hardened chrome piston rod to resist scuffs & corrosion, double-welded loops at stress areas, double strength closure method and hot form reserve tube
  • HANDLES EXTREME TEMPERATURE CHANGES — Large 2-in. monotube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • REDUCES FADE — Full-floating dividing piston and high-pressure nitrogen gas maintains constant pressure against the hydraulic oil, reducing aeration and shock fade
  • SMOOTH PERFORMANCE — Internal rebound bumper and shouldered rubber bushings help reduce noise, vibration and ride harshness while the PTFE-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • THE RIGHT FIT — Designed to fit right out of the box, application-specific mounting installs easily with no need for installing sleeves or extra hardware
  • KEEPS DIRT AND DEBRIS OUT — Sealing system with integrated dirt wiper helps keep moisture, dirt and debris from being ingested into the shock and contaminating the oil and destroying the internal seal
  • BUILT TO LAST — Large 46mm fluon-banded piston for consistent sealing between the piston and monotube for precise control, ride and handling; for extra protection, purchase shock boot RS1952 or RS1961
  • BOLD APPEARANCE — Black satin finish with distinctive Rancho red logo for an eye-catching look that stands out
  • BUY WITH CONFIDENCE — Comes with Rancho’s Limited Warranty
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Dorman – Suspension Leaf Spring (Part No.22-1667)

Suspension Leaf Spring

from

$282.99
This leaf helper spring is designed to match the fit and function of the original spring on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this leaf helper spring is designed to match the fit and function of the original spring on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to rust and fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Hellwig – Leaf Spring Design, Rear, 2000 Lb Load Capacity Per Set, Steel, With 2 Springs (Part No.9703)

Leaf Spring Design, Rear, 2000 Lb Load Capacity Per Set, Steel, With 2 Springs

from

$449.99
Add Assistance To Your Factory Overload Springs With Hellwig’s Contact Helper Springs. Get Help Sooner With The Contact Helper, As The Vehicle Is Loaded The Hellwig Contact Helper Spring Connects With The Factory Contact Pads Sooner Providing Better Support And Less Sag For Heavy Loads. When In Contact, The Extra Hellwig Leaves Stiffen The Overload Springs Decreasing The Sag Of The Vehicle In A Loaded Condition. Hellwig Contact Overload Assist Springs Mount Directly To The Factory Contact Springs For Easy Install And Better Load Support To Increase The Truck’s Level-load Carrying Capacity. In Normal Use, They Leave Performance Unchanged.

Product Features:
  • Additional Leaf/leaves To Add To The Factory Contact Helpers
  • Increases Rate When Loaded But Factory Ride When Empty
  • When In Contact, The Extra Hellwig Leaves Stiffen The Overload Springs Decreasing The Sag Of The Vehicle In A Loaded Condition
  • Easy Installation
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Dorman – Suspension Leaf Spring (Part No.22-1661)

Suspension Leaf Spring

from

$187.99
This leaf helper spring is designed to match the fit and function of the original spring on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this leaf helper spring is designed to match the fit and function of the original spring on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to rust and fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Hellwig – Leaf Spring Design, Rear Upper, 3500 Lb Load Capacity, Steel, With Springs Only (Part No.3527)

Leaf Spring Design, Rear Upper, 3500 Lb Load Capacity, Steel, With Springs Only

from

$674.99
This Hellwig helper spring set the standard for all other aftermarket helper springs. Featuring progressive spring rate and fulltime spring rate design, this spring is the workhorse of the Hellwig spring line. With the Progressive design the vehicle must be loaded and its spring compressed to activate the Hellwig spring, therefore as the vehicles load increases the Hellwig helper spring progressively increases its resistance to the load. In the Fulltime design the Hellwig spring immediately reacts to the vehicles load, therefore compressing very little as load is applied to the vehicle. Manufactured with heat treated ASTM 5160 alloy spring steel these units increase your vehicles level load carrying capacity up to the manufacturer Gross Vehicle Weight Rating. Designed to install on full size pick-up trucks and vans, this unit requires mounting hardware to accommodate 2-1/2 Inch or 3 Inch wide leaf springs. Simple Bolt-On design using common hand tools provide the installer ease of installation and the vehicle owner hassle free use.

Product Features:
  • Manufactured With Heat Treated ASTM 5150 Alloy Spring Steel. Increased Spring Rate And Stability
  • Heavier Loads
  • 4 Leaf Stack
  • 3000 Pounds Level Load Capacity
  • Available In Progressive Or Constant Rate
  • Offers The Maximum In Carrying Capacity
  • Simple Bolt-On Design Using Common Hand Tools Provide The Installer Ease Of Installation And The Vehicle Owner Hassle Free Use
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Dorman – Suspension Leaf Spring (Part No.22-1655)

Suspension Leaf Spring

from

$172.99
This leaf helper spring is designed to match the fit and function of the original spring on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this leaf helper spring is designed to match the fit and function of the original spring on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to rust and fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Timbren SES – Rubber Spring, Frame Mount, 8,600 Lb Weight Capacity Per Set, Aeon Hollow Rubber (Part No.GMRCK25D)

Rubber Spring, Frame Mount, 8,600 Lb Weight Capacity Per Set, Aeon Hollow Rubber

from

$304.99
Timbren has a full line of suspension enhancement systems for the tow vehicle. For those spacing a new trailer

Product Features:
  • Eliminate Suspension Sag: When Towing A Heavy Trailer, Timbren SES Extends The Life Of The Suspension Of Your Vehicle And Helps To Avoid Bottoming Out
  • Control Trailer Sway, A Condition Which Occurs With Unbalanced Loads, In Crosswinds Or When Passing Heavy Trucks Timbren SES Stabilizes Your Vehicle
  • Control Body Roll, During Cornering With Powerful Progressive Rate Rubber Springs Which Resist Lean And Enhance Vehicle Stability
  • Improve The Ride, By Allowing The Aeon(R) Rubber Springs Absorb Road Shocks And Bumps. Towing A Trailer Doesnt Have To Mean Poor Ride Quality
  • Simple And Easy To Install
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Dorman – Upper Shock Insulator (Part No.905-499)

Upper Shock Insulator

from

$23.99
This shock mount insulator is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles.
  • Reliable fit – precision-engineered to match the design and dimensions of original components.
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
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Dorman – Upper Shock Mounting Bushing Insulator (Part No.905-500)

Upper Shock Mounting Bushing Insulator

from

$28.99
This shock mount insulator is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
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Most Popular Strut Bellows for 2012 GMC Sierra 3500 HDs

Enhance your 2012 GMC Sierra 3500 HD with one of the 2 Strut Bellows we have in stock, starting at just $24.99.

Monroe – Shock-Mate Suspension Shock Absorber Bellows (Part No.SA1997)

Shock-Mate Suspension Shock Absorber Bellows

from

$26.99
Monroe® Shock-Mate® Shock Absorber Boot Kits are universal replacement shock boots use to protect the shock’s piston rod from dirt, mud and other contaminants – protecting the life of your shocks.

Product Features:
  • Protects the shock’s piston rod from damage
  • Universal design for easy installation
  • Tie-strap included for a secure fit
  • Constructed from high quality urethane for maximum durability
  • Multiple color choices available
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Monroe – Shock-Mate Suspension Shock Absorber Bellows (Part No.SA1998)

Shock-Mate Suspension Shock Absorber Bellows

from

$24.99
Monroe® Shock-Mate® Shock Absorber Boot Kits are universal replacement shock boots use to protect the shock’s piston rod from dirt, mud and other contaminants – protecting the life of your shocks.

Product Features:
  • Protects the shock’s piston rod from damage
  • Universal design for easy installation
  • Tie-strap included for a secure fit
  • Constructed from high quality urethane for maximum durability
  • Multiple color choices available
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Best-Selling 2012 GMC Sierra 3500 HD Rear Shock and Struts

Upgrade your Sierra 3500 HD with one of our 17 best-selling Rear Shock and Struts, earning an average 4.25 stars rating across 7 reviews.

Monroe – Gas-Magnum Suspension Shock Absorber (Part No.34811)

Gas-Magnum Suspension Shock Absorber

from

$128.99
Designed for midsize and full-size trucks and vans, Monroe Gas-Magnum shock absorbers provide firm control without a harsh ride. With up to twice the fluid capacity of standard 1-in. bore shocks, they work more efficiently with less effort.

Product Features:
  • DESIGNED FOR TRUCKS AND VANS – Engineered for hardworking full-size trucks and vans and features full-displaced valving on compression cycles to deliver controlled ride and handling
  • BUILT TO LAST – Heavy-duty nitrocarburized rod (non-dust shield units only) and sintered iron piston enhance durability for longer service life while self-lubricating fluid seal reduces friction against piston rod to reduce wear
  • CONSISTENT RIDE – OE all-weather fluid contains special modifiers to handle extreme temperatures and help reduce friction and ensure smooth rod reaction
  • IMPROVES PERFORMANCE – Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • LONGER SERVICE LIFE – Larger bore and bigger 2-in. reserve tube work together to hold more oil for greater capacity to allow the shock to work efficiently for controlled ride and longer service life
  • BUY WITH CONFIDENCE – Comes with Monroe’s Limited Warranty and exclusive Feel the Difference
  • Sintered Iron Piston: Stronger than traditional metals, enhances durability for longer service life.
  • Special Seal: ‘Self-lubricating’ fluid seal designed to retain gas without excessive wear or friction.
See More

Monroe – Reflex Suspension Shock Absorber (Part No.911303)

Reflex Suspension Shock Absorber

from

$114.99
Ideal for vehicles with a higher center of gravity, Monroe Reflex light truck shock absorbers feature ASD valving technology that automatically adjusts the unit to absorb the impact, helping to reduce vehicle roll and dive.

Product Features:
  • IMPROVES STABILITY – ASD (Acceleration Sensitive Damping) valving technology adjusts to impacts, reducing roll and dive for vehicles with a higher center of gravity
  • EXCEPTIONAL HANDLING – Full displaced valving, tuned specifically to each vehicle, adjusts to road extremes while the larger bore provides more efficient damping control to provide consistency and a smooth ride
  • CONSISTENT RIDE – OE all-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger reserve tube holds more fluid to run cooler
  • CONTROL AND DURABILITY – Fluon-banded piston provides consistent sealing between piston and pressure tube for better control and increased durability
  • IMPROVES PERFORMANCE – Nitrogen gas charge maintains tire-to-road contact for improved ride and handling by reducing aeration
  • BUILT TO LAST – Self-lubricating fluid seal retains gas and reduces excessive friction against the piston rod to help reduce premature wear
  • BUY WITH CONFIDENCE – Comes with Monroe’s Limited Warranty and exclusive Feel the Difference
  • 5/8 inch Piston Rod: Heavy-duty nitrocarburized rod for long service life. On non-dust shield units only
  • Special Seal: ‘Self-lubricating’ fluid seal designed to retain gas without excessive wear or friction.
See More

Rancho – RS5000X Suspension Shock Absorber (Part No.RS55379)

RS5000X Suspension Shock Absorber

from

$89.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho RS5000X shocks deliver improved overall on- and off-road handling and performance.

Product Features:
  • IMPROVED HANDLING AND PERFORMANCE – Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road
  • MINIMIZES ROUGH RIDE – Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride
  • STRONG AND DURABLE – Features a 16mm nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, 35mm sintered iron piston for enhanced structural integrity and polyvinyl protective boot
  • HANDLES EXTREME TEMPERATURE CHANGES – Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • REDUCES FADE – Nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming
  • MAINTAINS VEHICLE CONTROL – Compression Control Valve is custom-tuned for each vehicle to regulate fluid transfer to absorb impacts without disc flutter and help maintain shock motion control
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the application-specific piston delivers heightened control of shock motion due to the expanded piston area
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

Rancho – RS5000X Suspension Shock Absorber (Part No.RS55383)

RS5000X Suspension Shock Absorber

from

$95.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho RS5000X shocks deliver improved overall on- and off-road handling and performance.

Product Features:
  • IMPROVED HANDLING AND PERFORMANCE – Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road
  • MINIMIZES ROUGH RIDE – Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride
  • STRONG AND DURABLE – Features a 16mm nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, 35mm sintered iron piston for enhanced structural integrity and polyvinyl protective boot
  • HANDLES EXTREME TEMPERATURE CHANGES – Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • REDUCES FADE – Nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming
  • MAINTAINS VEHICLE CONTROL – Compression Control Valve is custom-tuned for each vehicle to regulate fluid transfer to absorb impacts without disc flutter and help maintain shock motion control
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the application-specific piston delivers heightened control of shock motion due to the expanded piston area
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

Rancho – Suspension Shock Absorber RS9000XL (Part No.RS999379)

Suspension Shock Absorber RS9000XL

from

$146.99
Get premium control and performance with Rancho RS9000XL shocks. Recognized as the first nine-position manually adjustable ride control series in the off-road market, RS9000XL shocks are ideal for on-road and off-road use, towing and more.

Product Features:
  • NINE LEVELS OF PERFORMANCE – Nine-position easy-to-adjust knob allows customized damping control and firmness for on-road and off-road flexibility
  • DESIGNED FOR HARDWORKING VEHICLES – Ideal for stock or lifted trucks, SUVs and Jeeps that tow, haul or go off road
  • INDUSTRY FIRST – Recognized as the first nine-position manually adjustable shock series in the off-road market
  • REDUCES FADE – Nitrogen gas pressurized to 120 PSI to minimize air-to-oil mixture and reduce damping performance fade and foaming
  • STRONG AND DURABLE – Features an application-specific 18mm nitro-carburized piston rod to resist scuffs and corrosion, double-welded loops at stress areas and 1.25-in. sintered iron piston for enhanced structural integrity
  • HANDLES EXTREME TEMPERATURE CHANGES – Up to 2.75-in. tri-tube body (application specific) filled with all-weather fluid allows for cooler operation.
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and bushings and graphite-filled fluon-banded piston help absorb ride harshness and enhance responsiveness to changing road conditions for an overall smoother ride
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the long-lasting premium liquid metallic finish and polyvinyl protective boot ensures longer life
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

Rancho – RS5000X Suspension Shock Absorber (Part No.RS55381)

RS5000X Suspension Shock Absorber

from

$94.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho RS5000X shocks deliver improved overall on- and off-road handling and performance.

Product Features:
  • IMPROVED HANDLING AND PERFORMANCE – Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road
  • MINIMIZES ROUGH RIDE – Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride
  • STRONG AND DURABLE – Features a 16mm nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, 35mm sintered iron piston for enhanced structural integrity and polyvinyl protective boot
  • HANDLES EXTREME TEMPERATURE CHANGES – Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • REDUCES FADE – Nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming
  • MAINTAINS VEHICLE CONTROL – Compression Control Valve is custom-tuned for each vehicle to regulate fluid transfer to absorb impacts without disc flutter and help maintain shock motion control
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the application-specific piston delivers heightened control of shock motion due to the expanded piston area
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

Monroe – Gas-Magnum Suspension Shock Absorber (Part No.34812)

Gas-Magnum Suspension Shock Absorber

from

$90.99
Designed for midsize and full-size trucks and vans, Monroe Gas-Magnum shock absorbers provide firm control without a harsh ride. With up to twice the fluid capacity of standard 1-in. bore shocks, they work more efficiently with less effort.

Product Features:
  • DESIGNED FOR TRUCKS AND VANS – Engineered for hardworking full-size trucks and vans and features full-displaced valving on compression cycles to deliver controlled ride and handling
  • BUILT TO LAST – Heavy-duty nitrocarburized rod (non-dust shield units only) and sintered iron piston enhance durability for longer service life while self-lubricating fluid seal reduces friction against piston rod to reduce wear
  • CONSISTENT RIDE – OE all-weather fluid contains special modifiers to handle extreme temperatures and help reduce friction and ensure smooth rod reaction
  • IMPROVES PERFORMANCE – Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • LONGER SERVICE LIFE – Larger bore and bigger 2-in. reserve tube work together to hold more oil for greater capacity to allow the shock to work efficiently for controlled ride and longer service life
  • BUY WITH CONFIDENCE – Comes with Monroe’s Limited Warranty and exclusive Feel the Difference
  • Sintered Iron Piston: Stronger than traditional metals, enhances durability for longer service life.
  • Special Seal: ‘Self-lubricating’ fluid seal designed to retain gas without excessive wear or friction.
See More

FOX Offroad Shocks – Suspension Shock Absorber: Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Single (Part No.980-24-955)

Suspension Shock Absorber: Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Single

from

$421.99
Product Features:
  • Packed With 35 Years Of Race Winning Technology
  • Performance Tuned For Vehicle Specific Application
  • Aluminum Body Dissipates Heat Faster Than Steel. Black Anodized CNC Machined Aluminum Components
  • External Reservoir System Dissipates Heat Fast
  • 100 Percent Serviceable and Tunable For Longer Lifespan
  • Nitrile Bushings Allow For Incread Articulation
  • Redundant Sealing System, Long Lasting Performance
  • Limited Warranty
See More

FOX Offroad Shocks – Suspension Shock Absorber: Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Single (Part No.980-24-957)

Suspension Shock Absorber: Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Single

from

$421.99
Product Features:
  • Packed With 35 Years Of Race Winning Technology
  • Performance Tuned For Vehicle Specific Application
  • Aluminum Body Dissipates Heat Faster Than Steel. Black Anodized CNC Machined Aluminum Components
  • External Reservoir System Dissipates Heat Fast
  • 100 Percent Serviceable and Tunable For Longer Lifespan
  • Nitrile Bushings Allow For Incread Articulation
  • Redundant Sealing System, Long Lasting Performance
  • Limited Warranty
See More

FOX Offroad Shocks – Suspension Shock Absorber: Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Single (Part No.980-24-956)

Suspension Shock Absorber: Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Single

from

$421.99
Product Features:
  • Packed With 35 Years Of Race Winning Technology
  • Performance Tuned For Vehicle Specific Application
  • Aluminum Body Dissipates Heat Faster Than Steel. Black Anodized CNC Machined Aluminum Components
  • External Reservoir System Dissipates Heat Fast
  • 100 Percent Serviceable and Tunable For Longer Lifespan
  • Nitrile Bushings Allow For Incread Articulation
  • Redundant Sealing System, Long Lasting Performance
  • Limited Warranty
See More

Skyjacker – Nitrogen Gas Charged Mono Tube, With External Reservoir, Non Adjustable, Single (Part No.A2017)

Nitrogen Gas Charged Mono Tube, With External Reservoir, Non Adjustable, Single

from

$321.99
Skyjacker was established in 1974. We grew from a one bay garage into an international manufacturing warehouse. Skyjacker continues to strive to stay ahead of the game in the aftermarket industry. Skyjacker builds quality suspension products. Skyjacker shock absorbers deliver a safe, comfortable ride with improved handling and stability. They keep the tires in contact with the terrain and put you in control of the road ahead.

Product Features:
  • Manufactured From High Quality Material
  • Engineered To The Specifications
  • Shock Absorbers Provides Comfortable And Safe Ride
  • Meets The Quality Standards
  • Easy Installation
See More

Skyjacker – Nitrogen Gas Charged Mono Tube, With External Reservoir, Non Adjustable, Single (Part No.A2036)

Nitrogen Gas Charged Mono Tube, With External Reservoir, Non Adjustable, Single

from

$321.99
Skyjacker was established in 1974. We grew from a one bay garage into an international manufacturing warehouse. Skyjacker continues to strive to stay ahead of the game in the aftermarket industry. Skyjacker builds quality suspension products. Skyjacker shock absorbers deliver a safe, comfortable ride with improved handling and stability. They keep the tires in contact with the terrain and put you in control of the road ahead.

Product Features:
  • Manufactured From High Quality Material
  • Engineered To The Specifications
  • Shock Absorbers Provides Comfortable And Safe Ride
  • Meets The Quality Standards
  • Easy Installation
See More

FOX Offroad Shocks – SHOCK ABSORBER (Part No.980-24-958)

SHOCK ABSORBER

from

$271.99
SHOCK ABSORBER

FOX Offroad Shocks – Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Without Boots, Single (Part No.980-24-664)

Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Without Boots, Single

from

$271.99
Product Features:
  • Packed With 35 Years Of Race Winning Technology
  • Performance Tuned For Vehicle Specific Application
  • Aluminum Body Dissipates Heat Faster Than Steel. Black Anodized CNC Machined Aluminum Components
  • IFP Separates Oil From High-Pressure Nitrogen Gas
  • 100 Percent Serviceable And Tunable For Longer Lifespan
  • Nitrile Bushings Allow For Incread Articulation
  • Redundant Sealing System, Long Lasting Performance
  • Limited 1 Year Factory And 90 Day Valving Warranty
See More

FOX Offroad Shocks – Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Without Boots, Single (Part No.980-24-659)

Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Without Boots, Single

from

$271.99
The 2.0 Performance Series Shocks delivers race-dominating performance in a hassle free bolt-on package. Their heat-reducing design includes a metal-impacted aluminum shock body that dissipates heat faster than conventional steel. Inside the Internal Floating Piston (IFP) separates shock oil from a high-pressure nitrogen gas chamber that provides a predicable ride quality capable of handling the roughest road conditions. Combine these new technologies with a competitive price for a winning combination.

Product Features:
  • Packed With 35 Years Of Race Winning Technology
  • Performance Tuned For Vehicle Specific Application
  • Aluminum Body Dissipates Heat Faster Than Steel. Black Anodized CNC Machined Aluminum Components
  • IFP Separates Oil From High-Pressure Nitrogen Gas
  • 100 Percent Serviceable And Tunable For Longer Lifespan
  • Nitrile Bushings Allow For Incread Articulation
  • Redundant Sealing System, Long Lasting Performance
  • Limited 1 Year Factory And 90 Day Valving Warranty
See More

FOX Offroad Shocks – Hydraulic/Nitrogen Gas Charged, Non-Adjustable Valving, Black/ Silver, Single (Part No.985-24-190)

Hydraulic/Nitrogen Gas Charged, Non-Adjustable Valving, Black/ Silver, Single

from

$271.99
Product Features:
  • Body 2.0 Inch Impact Extruded And CNC Machined 6061-T6 Clear Anodized Aluminum One-Piece Body Resists Rust Over Time
  • Body Plating Clear-Anodized For A Durable Finish
  • Reservoir Internal IFP Mono-Tube Reservoir Design
  • Components Black-Anodized, CNC-Machined 6061-T6 Billet Aluminum
  • Shaft 5/8 Inch Hard Chrome Plated Heat-Treated Alloy Steel
  • Piston Race-Developed High-Flow Piston Design
  • Seals Redundant Sealing Pack System Main Seal, Wiper Seal, Scraper Seal
  • Oil JM92 Advanced Suspension Fluid For Improved Performance At Variable Temperatures
  • Bushing Quiet Nitrile Rubber Allows For Increased Suspension Articulation
  • Limited 1 Year Warranty
See More

KYB – High Pressure Monotube Gas Shock (Part No.554389)

High Pressure Monotube Gas Shock

from

$88.99
The KYB Gas-a-just monotube shock absorber has additional performance advantages over the traditional twin-tube design: It can instantly, automatically adjust to your performance needs and never experiences fade due to aeration. The KYB Gas-a-just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness and control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand.

Product Features:
  • Adds Up To 25% More Damping Performance Over Original Equipment Shocks
  • Components And Valving Designed Specifically For Gm Trucks
  • Gas-A-Just Monotubes Include Additional Damping Over One Design For Vehicles That Work, Tow, And Have Larger, Heavier Tires & Wheels
  • High Pressure Monotube Design Separates The Gas And Oil For Fade Free Operation And Instant Response
  • Fluid Leaking Can Be A Cause Of Shock Failure, The KYB Gas-A-Just Has An Ultra-Smooth Triple Chrome Plated Chrome Piston Rod To Reduce Seal Wear
  • The Higher Gas Pressure Of The KYB Gas-A-Just Responds Quickly To Improve Steering Response
  • Electronic Safety Systems Depend On The Suspension, Brakes And Tires Operating As The Vehicle Manufacturer Intended. The KYB Gas-A-Just Helps Keep Electronic Safety Systems Performing As Designed.
See More

Top-Quality Helper Springs for 2012 GMC Sierra 3500 HDs

Choose a high-quality OEM or aftermarket Helper Spring for GMC Sierra 3500 HDs and enjoy top-notch performance from $172.99.

Timbren SES – Rubber Spring, Frame Mount, 8,600 Lb Weight Capacity Per Set, Aeon Hollow Rubber (Part No.GMRCK25D)

Rubber Spring, Frame Mount, 8,600 Lb Weight Capacity Per Set, Aeon Hollow Rubber

from

$304.99
Timbren has a full line of suspension enhancement systems for the tow vehicle. For those spacing a new trailer

Product Features:
  • Eliminate Suspension Sag: When Towing A Heavy Trailer, Timbren SES Extends The Life Of The Suspension Of Your Vehicle And Helps To Avoid Bottoming Out
  • Control Trailer Sway, A Condition Which Occurs With Unbalanced Loads, In Crosswinds Or When Passing Heavy Trucks Timbren SES Stabilizes Your Vehicle
  • Control Body Roll, During Cornering With Powerful Progressive Rate Rubber Springs Which Resist Lean And Enhance Vehicle Stability
  • Improve The Ride, By Allowing The Aeon(R) Rubber Springs Absorb Road Shocks And Bumps. Towing A Trailer Doesnt Have To Mean Poor Ride Quality
  • Simple And Easy To Install
See More

Dorman – Suspension Leaf Spring (Part No.22-1667)

Suspension Leaf Spring

from

$282.99
This leaf helper spring is designed to match the fit and function of the original spring on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this leaf helper spring is designed to match the fit and function of the original spring on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to rust and fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Suspension Leaf Spring (Part No.22-1661)

Suspension Leaf Spring

from

$187.99
This leaf helper spring is designed to match the fit and function of the original spring on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this leaf helper spring is designed to match the fit and function of the original spring on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to rust and fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Suspension Leaf Spring (Part No.22-1655)

Suspension Leaf Spring

from

$172.99
This leaf helper spring is designed to match the fit and function of the original spring on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this leaf helper spring is designed to match the fit and function of the original spring on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to rust and fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Top Picks for 2012 GMC Sierra 3500 HD Front Shock and Struts

Invest in one of our 20 durable Front Shock and Struts for your 2012 GMC, knowing you’re getting trusted brands and expert craftsmanship.

Rancho – RS5000X Suspension Shock Absorber (Part No.RS55377)

RS5000X Suspension Shock Absorber

from

$86.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho RS5000X shocks deliver improved overall on- and off-road handling and performance.

Product Features:
  • IMPROVED HANDLING AND PERFORMANCE – Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road
  • MINIMIZES ROUGH RIDE – Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride
  • STRONG AND DURABLE – Features a 16mm nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, 35mm sintered iron piston for enhanced structural integrity and polyvinyl protective boot
  • HANDLES EXTREME TEMPERATURE CHANGES – Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • REDUCES FADE – Nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming
  • MAINTAINS VEHICLE CONTROL – Compression Control Valve is custom-tuned for each vehicle to regulate fluid transfer to absorb impacts without disc flutter and help maintain shock motion control
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the application-specific piston delivers heightened control of shock motion due to the expanded piston area
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

Monroe – Gas-Magnum Suspension Shock Absorber (Part No.34810)

Gas-Magnum Suspension Shock Absorber

from

$148.99
Designed for midsize and full-size trucks and vans, Monroe Gas-Magnum shock absorbers provide firm control without a harsh ride. With up to twice the fluid capacity of standard 1-in. bore shocks, they work more efficiently with less effort.

Product Features:
  • DESIGNED FOR TRUCKS AND VANS – Engineered for hardworking full-size trucks and vans and features full-displaced valving on compression cycles to deliver controlled ride and handling
  • BUILT TO LAST – Heavy-duty nitrocarburized rod (non-dust shield units only) and sintered iron piston enhance durability for longer service life while self-lubricating fluid seal reduces friction against piston rod to reduce wear
  • CONSISTENT RIDE – OE all-weather fluid contains special modifiers to handle extreme temperatures and help reduce friction and ensure smooth rod reaction
  • IMPROVES PERFORMANCE – Nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade
  • LONGER SERVICE LIFE – Larger bore and bigger 2-in. reserve tube work together to hold more oil for greater capacity to allow the shock to work efficiently for controlled ride and longer service life
  • BUY WITH CONFIDENCE – Comes with Monroe’s Limited Warranty and exclusive Feel the Difference
  • Sintered Iron Piston: Stronger than traditional metals, enhances durability for longer service life.
  • Special Seal: ‘Self-lubricating’ fluid seal designed to retain gas without excessive wear or friction.
See More

Monroe – Reflex Suspension Shock Absorber (Part No.911447)

Reflex Suspension Shock Absorber

from

$171.99
Ideal for vehicles with a higher center of gravity, Monroe Reflex light truck shock absorbers feature ASD valving technology that automatically adjusts the unit to absorb the impact, helping to reduce vehicle roll and dive.

Product Features:
  • IMPROVES STABILITY – ASD (Acceleration Sensitive Damping) valving technology adjusts to impacts, reducing roll and dive for vehicles with a higher center of gravity
  • EXCEPTIONAL HANDLING – Full displaced valving, tuned specifically to each vehicle, adjusts to road extremes while the larger bore provides more efficient damping control to provide consistency and a smooth ride
  • CONSISTENT RIDE – OE all-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown while larger reserve tube holds more fluid to run cooler
  • CONTROL AND DURABILITY – Fluon-banded piston provides consistent sealing between piston and pressure tube for better control and increased durability
  • IMPROVES PERFORMANCE – Nitrogen gas charge maintains tire-to-road contact for improved ride and handling by reducing aeration
  • BUILT TO LAST – Self-lubricating fluid seal retains gas and reduces excessive friction against the piston rod to help reduce premature wear
  • BUY WITH CONFIDENCE – Comes with Monroe’s Limited Warranty and exclusive Feel the Difference
  • 5/8 inch Piston Rod: Heavy-duty nitrocarburized rod for long service life. On non-dust shield units only
  • Special Seal: ‘Self-lubricating’ fluid seal designed to retain gas without excessive wear or friction.
See More

Skyjacker – Hydraulic, Limited Lifetime Warranty, Non-Adjustable, Includes Dust Boot, Single (Part No.H7027)

Hydraulic, Limited Lifetime Warranty, Non-Adjustable, Includes Dust Boot, Single

from

$71.99
HYDRO H7000 series shocks are recommended for multiple shock applications and mild to moderate off-road use. Skyjacker(R) hydro shocks, Skyjacker(R) suspensions offers you a high quality shock absorber with true velocity sensitive valving. Shock absorbers, or spring dampers as it is called everywhere else except in the U.S, control the rate at which suspension springs compress and rebound. As the shock is pushed together, this is called bump or compression. As the shock expands, this is called rebound or extension. Absorbing the shock of bumps and suspension loading is actually performed by the springs in the suspension. The shock real job is controlling the energy stored in the springs. The performance specific internal components of Skyjacker shocks respond to the on- and off-road conditions instantly. Whether you are going over rough or smooth terrain at slow or fast speeds, the true velocity sensitive valving produces a stable, controlled level of resistance for better handling, improved stability, and maximum comfort. The technological innovations of these durable, long lasting shocks from Skyjacker(R) deliver a noticeable advantage over the original equipment and other shock dampeners. Skyjacker shock absorbers deliver a safe, comfortable ride with improved handling and stability. They keep the tires in contact with the terrain and put you in control of the road ahead

Product Features:
  • Hydraulic Action. Leak Proof Seal Prevents Hydraulic Fluid From Passing Around Piston Head For A Consistent And Reliable Ride
  • Multi Stage Velocity Sensitive Valving
  • Twin Tube Construction. DOM Tubing Reduces Internal Wear For Longer Product Life
  • Bonded Iron Piston For Durability And Longer Shock Life
  • Chromed Piston Rod Features Micro Polished Shaft For Improved Product Life And Performance
  • Orifice Disk For Axle Control In Any Condition
  • Red Polyurethane Bushings
See More

Rancho – RS5000X Suspension Shock Absorber (Part No.RS55378)

RS5000X Suspension Shock Absorber

from

$89.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho RS5000X shocks deliver improved overall on- and off-road handling and performance.

Product Features:
  • IMPROVED HANDLING AND PERFORMANCE – Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road
  • MINIMIZES ROUGH RIDE – Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride
  • STRONG AND DURABLE – Features a 16mm nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, 35mm sintered iron piston for enhanced structural integrity and polyvinyl protective boot
  • HANDLES EXTREME TEMPERATURE CHANGES – Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • REDUCES FADE – Nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming
  • MAINTAINS VEHICLE CONTROL – Compression Control Valve is custom-tuned for each vehicle to regulate fluid transfer to absorb impacts without disc flutter and help maintain shock motion control
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the application-specific piston delivers heightened control of shock motion due to the expanded piston area
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

Rancho – RS5000X Suspension Shock Absorber (Part No.RS55380)

RS5000X Suspension Shock Absorber

from

$86.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho RS5000X shocks deliver improved overall on- and off-road handling and performance.

Product Features:
  • IMPROVED HANDLING AND PERFORMANCE – Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road
  • MINIMIZES ROUGH RIDE – Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride
  • STRONG AND DURABLE – Features a 16mm nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, 35mm sintered iron piston for enhanced structural integrity and polyvinyl protective boot
  • HANDLES EXTREME TEMPERATURE CHANGES – Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • REDUCES FADE – Nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming
  • MAINTAINS VEHICLE CONTROL – Compression Control Valve is custom-tuned for each vehicle to regulate fluid transfer to absorb impacts without disc flutter and help maintain shock motion control
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the application-specific piston delivers heightened control of shock motion due to the expanded piston area
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

Rancho – RS9000XL Suspension Shock Absorber (Part No.RS999377)

RS9000XL Suspension Shock Absorber

from

$149.99
Get premium control and performance with Rancho RS9000XL shocks. Recognized as the first nine-position manually adjustable ride control series in the off-road market, RS9000XL shocks are ideal for on- and off-road use, towing and more.

Product Features:
  • NINE LEVELS OF PERFORMANCE – Nine-position easy-to-adjust knob allows customized damping control and firmness for on-road and off-road flexibility
  • DESIGNED FOR HARDWORKING VEHICLES – Ideal for stock or lifted trucks, SUVs and Jeeps that tow, haul or go off road
  • INDUSTRY FIRST – Recognized as the first nine-position manually adjustable shock series in the off-road market
  • REDUCES FADE – Nitrogen gas pressurized to 120 PSI to minimize air-to-oil mixture and reduce damping performance fade and foaming
  • STRONG AND DURABLE – Features an application-specific 18mm nitro-carburized piston rod to resist scuffs and corrosion, double-welded loops at stress areas and 1.25-in. sintered iron piston for enhanced structural integrity
  • HANDLES EXTREME TEMPERATURE CHANGES – Up to 2.75-in. tri-tube body (application specific) filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and bushings and graphite-filled fluon-banded piston help absorb ride harshness and enhance responsiveness to changing road conditions for an overall smoother ride
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the long-lasting premium liquid metallic finish and polyvinyl protective boot ensures longer life
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

Skyjacker – Nitro Shock W/Red Boot (Part No.N8027)

Nitro Shock W/Red Boot

from

$85.99
NITRO N8000 series shocks are recommended for full size vehicles and moderate to extreme off-road applications. Skyjacker(R) nitro shocks, Skyjacker(R) suspensions offers you a high quality shock absorber with true velocity sensitive valving. Shock absorbers, or spring dampers as it is called everywhere else except in the U.S, control the rate at which suspension springs compress and rebound. As the shock is pushed together, this is called bump or compression. As the shock expands, this is called rebound or extension. Absorbing the shock of bumps and suspension loading is actually performed by the springs in the suspension. The shock real job is controlling the energy stored in the springs. The performance specific internal components of Skyjacker shocks respond to the on- and off-road conditions instantly. Whether you are going over rough or smooth terrain at slow or fast speeds, the true velocity sensitive valving produces a stable, controlled level of resistance for better handling, improved stability, and maximum comfort. The technological innovations of these durable, long lasting shocks from Skyjacker(R) deliver a noticeable advantage over the original equipment and other shock dampeners. Skyjacker shock absorbers deliver a safe, comfortable ride with improved handling and stability. They keep the tires in contact with the terrain and put you in control of the road ahead

Product Features:
  • 150 PSI Pressurized Nitrogen Gas
  • Multi Stage Velocity Sensitive Valving
  • Twin Tube Construction. DOM Tubing Reduces Internal Wear For Longer Product Life
  • Bonded Iron Piston For Durability And Longer Shock Life
  • Chromed Piston Rod Features Micro Polished Shaft For Improved Product Life And Performance
  • Orifice Disk For Axle Control In Any Condition
  • Red Polyurethane Bushings
See More

Rancho – RS5000X Suspension Shock Absorber (Part No.RS55382)

RS5000X Suspension Shock Absorber

from

$89.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho RS5000X shocks deliver improved overall on- and off-road handling and performance.

Product Features:
  • IMPROVED HANDLING AND PERFORMANCE – Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road
  • MINIMIZES ROUGH RIDE – Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride
  • STRONG AND DURABLE – Features a 16mm nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, 35mm sintered iron piston for enhanced structural integrity and polyvinyl protective boot
  • HANDLES EXTREME TEMPERATURE CHANGES – Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • REDUCES FADE – Nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming
  • MAINTAINS VEHICLE CONTROL – Compression Control Valve is custom-tuned for each vehicle to regulate fluid transfer to absorb impacts without disc flutter and help maintain shock motion control
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the application-specific piston delivers heightened control of shock motion due to the expanded piston area
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

FOX Offroad Shocks – Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Single (Part No.980-24-968)

Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Single

from

$421.99
Product Features:
  • Packed With 35 Years Of Race Winning Technology
  • Performance Tuned For Vehicle Specific Application
  • Aluminum Body Dissipates Heat Faster Than Steel. Black Anodized CNC Machined Aluminum Components
  • External Reservoir System Dissipates Heat Fast
  • 100 Percent Serviceable And Tunable For Longer Lifespan
  • Nitrile Bushings Allow For Incread Articulation
  • Redundant Sealing System, Long Lasting Performance
  • Limited 1 Year Factory And 90 Day Valving Warranty
See More

FOX Offroad Shocks – Suspension Shock Absorber: Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Single (Part No.980-24-966)

Suspension Shock Absorber: Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Single

from

$421.99
Product Features:
  • Packed With 35 Years Of Race Winning Technology
  • Performance Tuned For Vehicle Specific Application
  • Aluminum Body Dissipates Heat Faster Than Steel. Black Anodized CNC Machined Aluminum Components
  • External Reservoir System Dissipates Heat Fast
  • 100 Percent Serviceable and Tunable For Longer Lifespan
  • Nitrile Bushings Allow For Incread Articulation
  • Redundant Sealing System, Long Lasting Performance
  • Limited Warranty
See More

FOX Offroad Shocks – Hydraulic/Nitrogen Gas Charged, With Remote Reservoir, Black/Silver, Single (Part No.985-24-191)

Hydraulic/Nitrogen Gas Charged, With Remote Reservoir, Black/Silver, Single

from

$421.99
Product Features:
  • Body 2.0 Inch Impact Extruded And CNC Machined 6061-T6 Clear Anodized Aluminum One-Piece Body Resists Rust Over Time
  • Body Plating Clear-Anodized For A Durable Finish
  • Reservoir 2.0 Inch Smooth Bore 6061-T6 Aluminum Is Hard Anodized
  • Components Black-Anodized, CNC-Machined 6061-T6 Billet Aluminum
  • Shaft 5/8 Inch Hard Chrome Plated Heat-Treated Alloy Steel
  • Piston Race-Developed High-Flow Piston Design
  • Seals Redundant Sealing Pack System Main Seal, Wiper Seal, Scraper Seal
  • Oil JM92 Advanced Suspension Fluid For Improved Performance At Variable Temperatures
  • Bushing Quiet Nitrile Rubber Allows For Increased Suspension Articulation
  • Limited 1 Year Warranty
See More

FOX Offroad Shocks – Hydraulic, Adjustable Valving, 20.28"H Extend/13.68"H Compress, Aluminum, Single (Part No.985-24-189)

Hydraulic, Adjustable Valving, 20.28"H Extend/13.68"H Compress, Aluminum, Single

from

$271.99
Product Features:
  • Body 2.0 Inch Impact Extruded And CNC Machined 6061-T6 Clear Anodized Aluminum One-Piece Body Resists Rust Over Time
  • Body Plating Clear-Anodized For A Durable Finish
  • Reservoir Internal IFP Mono-Tube Reservoir Design
  • Shaft 5/8 Inch Hard Chrome Plated Heat Treated Alloy Steel
  • Piston Race-Developed High-Flow Piston Design
  • Seals Redundant Sealing Pack System Main Seal, Wiper Seal, Scraper Seal
  • Oil JM92 Advanced Suspension Fluid For Improved Performance At Variable Temperatures
  • Bushings Quiet Nitrile Rubber Allows For Increased Suspension Articulation
  • Limited 1 Year Warranty
See More

FOX Offroad Shocks – Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Without Boots, Single (Part No.980-24-967)

Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Without Boots, Single

from

$271.99
Product Features:
  • Packed With 35 Years Of Race Winning Technology
  • Performance Tuned For Vehicle Specific Application
  • Aluminum Body Dissipates Heat Faster Than Steel. Black Anodized CNC Machined Aluminum Components
  • IFP Separates Oil From High-Pressure Nitrogen Gas
  • 100 Percent Serviceable And Tunable For Longer Lifespan
  • Nitrile Bushings Allow For Incread Articulation
  • Redundant Sealing System, Long Lasting Performance
  • Limited 1 Year Factory And 90 Day Valving Warranty
See More

FOX Offroad Shocks – Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Without Boots, Single (Part No.980-24-963)

Hydraulic/Nitrogen Gas Charged Mono Tube, Non Adjustable, Without Boots, Single

from

$271.99
Product Features:
  • Packed With 35 Years Of Race Winning Technology
  • Performance Tuned For Vehicle Specific Application
  • Aluminum Body Dissipates Heat Faster Than Steel. Black Anodized CNC Machined Aluminum Components
  • IFP Separates Oil From High-Pressure Nitrogen Gas
  • 100 Percent Serviceable And Tunable For Longer Lifespan
  • Nitrile Bushings Allow For Incread Articulation
  • Redundant Sealing System, Long Lasting Performance
  • Limited 1 Year Factory And 90 Day Valving Warranty
See More

Rancho – RS9000XL Suspension Shock Absorber (Part No.RS999380)

RS9000XL Suspension Shock Absorber

from

$165.99
Get premium control and performance with Rancho RS9000XL shocks. Recognized as the first nine-position manually adjustable ride control series in the off-road market, RS9000XL shocks are ideal for on- and off-road use, towing and more.

Product Features:
  • NINE LEVELS OF PERFORMANCE – Nine-position easy-to-adjust knob allows customized damping control and firmness for on-road and off-road flexibility
  • DESIGNED FOR HARDWORKING VEHICLES – Ideal for stock or lifted trucks, SUVs and Jeeps that tow, haul or go off road
  • INDUSTRY FIRST – Recognized as the first nine-position manually adjustable shock series in the off-road market
  • REDUCES FADE – Nitrogen gas pressurized to 120 PSI to minimize air-to-oil mixture and reduce damping performance fade and foaming
  • STRONG AND DURABLE – Features an application-specific 18mm nitro-carburized piston rod to resist scuffs and corrosion, double-welded loops at stress areas and 1.25-in. sintered iron piston for enhanced structural integrity
  • HANDLES EXTREME TEMPERATURE CHANGES – Up to 2.75-in. tri-tube body (application specific) filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • SMOOTH PERFORMANCE – Polyurethane rebound bumper and bushings and graphite-filled fluon-banded piston help absorb ride harshness and enhance responsiveness to changing road conditions for an overall smoother ride
  • BUILT TO LAST – Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the long-lasting premium liquid metallic finish and polyvinyl protective boot ensures longer life
  • BUY WITH CONFIDENCE – Comes with Rancho’s Limited Warranty
See More

Rancho – RS7MT Suspension Shock Absorber (Part No.RS77380)

RS7MT Suspension Shock Absorber

from

$108.99
Application tuned for precision on-road and off-road handling, Rancho® RS7MT® monotube shocks are highly effective in the dissipation of heat, making them ideal for extreme off-road use and larger wheel and tire packages. RS7MT shocks feature an integrated dirt wiper sealing system that keeps dirt and debris out, hardened piston rod that resists scuffs and corrosion plus an internal rebound bumper to smooth out your ride on any terrain.

Product Features:
  • PRECISE HANDLING AND PERFORMANCE — Deflective Disc Valving features digressive, linear or progressive tuning based on application requirements for precision handling and performance on- and off-road
  • STRONG AND DURABLE — Features a 14mm hardened chrome piston rod to resist scuffs & corrosion, double-welded loops at stress areas, double strength closure method and hot form reserve tube
  • HANDLES EXTREME TEMPERATURE CHANGES — Large 2-in. monotube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • REDUCES FADE — Full-floating dividing piston and high-pressure nitrogen gas maintains constant pressure against the hydraulic oil, reducing aeration and shock fade
  • SMOOTH PERFORMANCE — Internal rebound bumper and shouldered rubber bushings help reduce noise, vibration and ride harshness while the PTFE-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • THE RIGHT FIT — Designed to fit right out of the box, application-specific mounting installs easily with no need for installing sleeves or extra hardware
  • KEEPS DIRT AND DEBRIS OUT — Sealing system with integrated dirt wiper helps keep moisture, dirt and debris from being ingested into the shock and contaminating the oil and destroying the internal seal
  • BUILT TO LAST — Large 46mm fluon-banded piston for consistent sealing between the piston and monotube for precise control, ride and handling; for extra protection, purchase shock boot RS1952 or RS1961
  • BOLD APPEARANCE — Black satin finish with distinctive Rancho red logo for an eye-catching look that stands out
  • BUY WITH CONFIDENCE — Comes with Rancho’s Limited Warranty
See More

Rancho – RS7MT Suspension Shock Absorber (Part No.RS77378)

RS7MT Suspension Shock Absorber

from

$108.99
Application tuned for precision on-road and off-road handling, Rancho® RS7MT® monotube shocks are highly effective in the dissipation of heat, making them ideal for extreme off-road use and larger wheel and tire packages. RS7MT shocks feature an integrated dirt wiper sealing system that keeps dirt and debris out, hardened piston rod that resists scuffs and corrosion plus an internal rebound bumper to smooth out your ride on any terrain.

Product Features:
  • PRECISE HANDLING AND PERFORMANCE — Deflective Disc Valving features digressive, linear or progressive tuning based on application requirements for precision handling and performance on- and off-road
  • STRONG AND DURABLE — Features a 14mm hardened chrome piston rod to resist scuffs & corrosion, double-welded loops at stress areas, double strength closure method and hot form reserve tube
  • HANDLES EXTREME TEMPERATURE CHANGES — Large 2-in. monotube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • REDUCES FADE — Full-floating dividing piston and high-pressure nitrogen gas maintains constant pressure against the hydraulic oil, reducing aeration and shock fade
  • SMOOTH PERFORMANCE — Internal rebound bumper and shouldered rubber bushings help reduce noise, vibration and ride harshness while the PTFE-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • THE RIGHT FIT — Designed to fit right out of the box, application-specific mounting installs easily with no need for installing sleeves or extra hardware
  • KEEPS DIRT AND DEBRIS OUT — Sealing system with integrated dirt wiper helps keep moisture, dirt and debris from being ingested into the shock and contaminating the oil and destroying the internal seal
  • BUILT TO LAST — Large 46mm fluon-banded piston for consistent sealing between the piston and monotube for precise control, ride and handling; for extra protection, purchase shock boot RS1952 or RS1961
  • BOLD APPEARANCE — Black satin finish with distinctive Rancho red logo for an eye-catching look that stands out
  • BUY WITH CONFIDENCE — Comes with Rancho’s Limited Warranty
See More

Rancho – RS7MT Suspension Shock Absorber (Part No.RS77377)

RS7MT Suspension Shock Absorber

from

$108.99
Application tuned for precision on-road and off-road handling, Rancho® RS7MT® monotube shocks are highly effective in the dissipation of heat, making them ideal for extreme off-road use and larger wheel and tire packages. RS7MT shocks feature an integrated dirt wiper sealing system that keeps dirt and debris out, hardened piston rod that resists scuffs and corrosion plus an internal rebound bumper to smooth out your ride on any terrain.

Product Features:
  • PRECISE HANDLING AND PERFORMANCE — Deflective Disc Valving features digressive, linear or progressive tuning based on application requirements for precision handling and performance on- and off-road
  • STRONG AND DURABLE — Features a 14mm hardened chrome piston rod to resist scuffs & corrosion, double-welded loops at stress areas, double strength closure method and hot form reserve tube
  • HANDLES EXTREME TEMPERATURE CHANGES — Large 2-in. monotube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 Deg. F
  • REDUCES FADE — Full-floating dividing piston and high-pressure nitrogen gas maintains constant pressure against the hydraulic oil, reducing aeration and shock fade
  • SMOOTH PERFORMANCE — Internal rebound bumper and shouldered rubber bushings help reduce noise, vibration and ride harshness while the PTFE-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
  • THE RIGHT FIT — Designed to fit right out of the box, application-specific mounting installs easily with no need for installing sleeves or extra hardware
  • KEEPS DIRT AND DEBRIS OUT — Sealing system with integrated dirt wiper helps keep moisture, dirt and debris from being ingested into the shock and contaminating the oil and destroying the internal seal
  • BUILT TO LAST — Large 46mm fluon-banded piston for consistent sealing between the piston and monotube for precise control, ride and handling; for extra protection, purchase shock boot RS1952 or RS1961
  • BOLD APPEARANCE — Black satin finish with distinctive Rancho red logo for an eye-catching look that stands out
  • BUY WITH CONFIDENCE — Comes with Rancho’s Limited Warranty
See More

Skyjacker – Hydraulic, Twin Tube, Limited Lifetime Warranty, Non-Adjustable, Single (Part No.B8527)

Hydraulic, Twin Tube, Limited Lifetime Warranty, Non-Adjustable, Single

from

$87.99
The performance specific internal components of Skyjacker shocks respond to the on- and off-road conditions instantly. Whether you are going over rough or smooth terrain at slow or fast speeds, the true velocity sensitive valving produces a stable, controlled level of resistance for better handling, improved stability, and maximum comfort. The technological innovations of these durable, long lasting shocks from Skyjacker(R) deliver a noticeable advantage over the original equipment and other shock dampeners. Skyjacker shock absorbers deliver a safe, comfortable ride with improved handling and stability. They keep the tires in contact with the terrain and put you in control of the road ahead.

Product Features:
  • Twin Tube Construction
  • Advanced Foam-Cell Technology
  • Vehicle Specific Multi-Stage Valving
  • Increased Fluid Capacity For MAX Heat Dissipation
  • 360 Degree Arc-Welded End Mount And 180 Degree Directional Mounting
  • Chrome Plated Shaft And Sintered Iron Piston
  • Comes With Black Boot
See More

Shock Mounts for 2012 GMC Sierra 3500 HDs

Make a smart move for your 2012 GMC Sierra 3500 HD with products all priced from $23.99 to $28.99.

Dorman – Upper Shock Insulator (Part No.905-499)

Upper Shock Insulator

from

$23.99
This shock mount insulator is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles.
  • Reliable fit – precision-engineered to match the design and dimensions of original components.
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Upper Shock Mounting Bushing Insulator (Part No.905-500)

Upper Shock Mounting Bushing Insulator

from

$28.99
This shock mount insulator is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Top-Rated Shocks and Strut Brands For Your 2012 GMC Sierra 3500 HD

When it comes to finding the perfect Shocks and Strut for your 2012 GMC Sierra 3500 HD, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 7 trusted brands. We carry the most popular Shocks and Strut brands including Monroe and Rancho, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $26.99. Purchasing a Shocks and Strut from us here at Advance Auto Parts is a smart move for both you and your 2012 GMC Sierra 3500 HD, providing peace of mind with parts that meet or exceed OEM standards.

Popular Monroe 2012 GMC Sierra 3500 HD Shocks and Struts

If you’re looking for a top-quality Shocks and Strut for your 2012 GMC Sierra 3500 HD, Advance Auto Parts has exactly what you need with our selection of Monroe Shocks and Struts. We have 3 Monroe Shocks and Struts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $26.99 and an average cost of $101.66, you’ll find the perfect Shocks and Strut for your needs and budget. Monroe Shocks and Struts for the 2012 GMC Sierra 3500 HD come highly rated, with over 39 customer reviews and an impressive average rating of 4.4 stars. Choosing a Monroe Shocks and Strut from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Gas-Magnum Suspension Shock Absorber
from $128.99
(2)
Gas-Magnum Suspension Shock Absorber
“I pull heavy trailers and they have heavy hitch weights”
Gas-Magnum Suspension Shock Absorber
from $148.99
(2)
Gas-Magnum Suspension Shock Absorber
“2012 chevy 2500hd replaced original equipment”
Shock-Mate Suspension Shock Absorber Bellows
from $26.99
(35)
Shock-Mate Suspension Shock Absorber Bellows
“Used this to replace the torn shock boot on my Goldwing 1500 motorcycle. it fit well, used a tie warp and it was good to go”

Top-Quality Rancho 2012 GMC Sierra 3500 HD Shocks and Struts

For those in search of a high-quality Shocks and Strut for their 2012 GMC Sierra 3500 HD, Advance Auto Parts offers a great selection of Rancho Shocks and Struts. With 1 Rancho Shocks and Struts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Shocks and Struts start at just $86.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.1 stars, Rancho Shocks and Struts provide both reliability and excellent performance. Choosing a Rancho Shocks and Strut from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
RS5000X Suspension Shock Absorber
from $86.99
(1)
RS5000X Suspension Shock Absorber
“ultra fast shipping, bolted right on, perfect.”

FAQs for 2012 GMC Sierra 3500 HD Shocks and Struts

What are the best-selling Shocks and Struts for 2012 GMC Sierra 3500 HDs?

Out of 46 Shocks and Struts that fit 2012 GMC Sierra 3500 HDs, the following parts are the top sellers:

What’s the price range for 2012 GMC Sierra 3500 HD Shocks and Struts?

The prices of Shocks and Struts for the 2012 GMC Sierra 3500 HD range from $19.49 up to $421.99 for the most premium parts.

What is the average price of a Shocks and Strut for a 2012 GMC Sierra 3500 HD?

The average price for Shocks and Struts for the 2012 GMC Sierra 3500 HD is $186.58. Keep in mind the variety of part types within our Shocks and Strut category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Shocks and Struts for other GMC Sierra 3500 HD model years?

Yes, we carry Shocks and Struts for 17 model years of GMC Sierra 3500 HDs between 2007 and 2025. The following model years are the most popular for Shocks and Strut purchases: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

What are the cheapest Shocks and Struts for my 2012 GMC Sierra 3500 HD?

The cheapest 2012 GMC Sierra 3500 HD Shocks and Struts we carry are:

Does Advance Auto Parts sell Shocks and Struts for any other 2012 GMC models?

What are the top-rated Shocks and Struts that fit the 2012 GMC Sierra 3500 HD?

Based on 840 reviews by customers, our 2012 GMC Sierra 3500 HD Shocks and Struts have an average customer rating of 4 stars. These are the highest-rated categories of Shocks and Struts for the 2012 GMC Sierra 3500 HD and their top-rated products:

What types of Shocks and Struts do you sell for my 2012 GMC Sierra 3500 HD?

As of 11/2/25, these are some of the most in-demand types of Shocks and Struts for a 2012 GMC Sierra 3500 HD:

Can I get help with 2012 GMC Sierra 3500 HD Shocks and Strut orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Shocks and Struts and more.

What is your return policy for GMC Sierra 3500 HD Shocks and Struts?

Advance Auto Parts keeps returns simple. For new GMC Sierra 3500 HD Shocks and Struts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.