2021 GMC Sierra 2500 HD Shocks and Struts

Essential 2021 GMC Sierra 2500 HD Shocks and Struts

KYB – High Pressure Monotube Gas Shock (Part No.KG54342)

High Pressure Monotube Gas Shock

from

$113.99
The Gas-a-just monotube shock absorber is available as an OE monotube replacement to restore your vehicles original capabilities. The KYB Gas-a-just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness and con

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

Rancho – RS9000XL Shock Absorber (Part No.RS999056)

RS9000XL Shock Absorber

from

$161.99
Get premium control and performance with Rancho RS9000®XL 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°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 long life
See More

Rancho – RS7MT Suspension Shock Absorber (Part No.RS77056)

RS7MT Suspension Shock Absorber

from

$101.99
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░F
  • 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°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
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Rancho – RS5000X Shock Absorber (Part No.RS55383)

RS5000X Shock Absorber

from

$90.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho® RS5000®X 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°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
  • Rebound Bumper
See More

Monroe – Gas-Magnum Shock Absorber (Part No.34690)

Gas-Magnum Shock Absorber

from

$104.99
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
  • Nitrogen Gas Charged: For improved ride and handling, helps maintain tire to road contact by reducing aeration – on most applications
  • 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

Rancho – RS5000X Shock Absorber (Part No.RS55379)

RS5000X Shock Absorber

from

$83.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho® RS5000®X 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°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
  • Rebound Bumper
See More

Rancho – RS5000 Shock Absorber (Part No.RS5056)

RS5000 Shock Absorber

from

$70.99
The shock that started it all! Rancho® RS5000 series has been the shock of choice for light trucks and sport utility vehicles since 1985. Available for stock and lifted applications, RS5000 is ideal for on and off-road use, at an affordable price.

Product Features:
  • Ten-stage velocity sensitive valving – Provides tuning specific for each vehicle
  • 5/8-in. (16mm) diameter piston rod (select applications) – Adds strength and durability. Size varies by application.
  • 1 3/8-in. (35mm) diameter piston (select applications) – Ensures performance in any environment
  • Protective boot included – Protects the shock rod and oil seal
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Belltech – Nitrogen Gas Charged, Twin Tube, Two Year Warranty, Not Adjustable, Single (Part No.8504)

Nitrogen Gas Charged, Twin Tube, Two Year Warranty, Not Adjustable, Single

from

$55.99
The completely new designed Nitro Drop 2 shocks bring a high performance blend of internal valve technology and state of the art construction at a price never seen before for your vehicle.

Product Features:
  • OEM Replacement With Performance Characteristics
  • Triple Lip NBR Rod Seal
  • OE Style Rubber Bushings Offers Maximum Durability
  • 45 Millimeter Wide Body For Increased Oil Volume And OEM Quality Rubber Bushings
  • Easy Installation
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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

Skyjacker – Hydraulic, Twin Tube, Limited Lifetime Warranty, Non-Adjustable, Single (Part No.B8519)

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

from

$66.99
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
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Rancho – RS5000X Shock Absorber (Part No.RS55370)

RS5000X Shock Absorber

from

$80.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho® RS5000®X 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°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
  • Rebound Bumper
See More

Rancho – RS9000XL Shock Absorber (Part No.RS999055)

RS9000XL Shock Absorber

from

$161.99
Get premium control and performance with Rancho RS9000®XL 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°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 long life
See More

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

Gas-Magnum Shock Absorber

from

$124.99
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
  • Nitrogen Gas Charged: For improved ride and handling, helps maintain tire to road contact by reducing aeration – on most applications
  • 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

Rancho – RS5000X Shock Absorber (Part No.RS55288)

RS5000X Shock Absorber

from

$80.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho® RS5000®X 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°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
  • Rebound Bumper
See More

Rancho – RS5000X Shock Absorber (Part No.RS55378)

RS5000X Shock Absorber

from

$84.99
Featuring a unique, exclusive valving system and advanced compression functionality, Rancho® RS5000®X 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°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
  • Rebound Bumper
See More

Skyjacker – Nitro Shock W/Red Boot (Part No.N8036)

Nitro Shock W/Red Boot

from

$69.99
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
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Monroe – Reflex Strut (Part No.72447)

Reflex Strut

from

$109.99
The Monroe® Reflex® struts with the patented ASD Technology combines specially tuned valving and a Fluon banded piston. The ASD valve has the ability to sense acceleration to improve the handling, safety, and overall ride characteristics of most vehicles. The ASD base valve will sense a bump in the road and automatically adjust the shock to absorb the impact, leaving the shock with greater control when it is needed. The features of the Monroe® Reflex® struts make it the superior choice for improved handling, safety, and comfort in all road conditions.

Product Features:
  • All Weather Fluid: Contains special modifiers to reduce friction and ensure smooth rod reaction.
  • ASD Technology: Innovative valving provides greater control for handling, while improving ride comfort.
  • Nitrogen Gas Charged: For improved ride and handling, helps maintain tire to road contact by reducing aeration – on most applications
  • Rod Displaced Valving: Better valving range on both the compression and extension cycles of the unit for a smooth comfortable ride.
  • Special Dust Boot/Jounce Bumper: Protective dust boot reduces dirt and any moisture build-up. Jounce bumper helps prevent severe suspension movement. Dust boot & jounce bumper sold separately.
  • Unique Rod Guide and Single Lip Seal: Bronze reinforced rod guide bearing and special seal provides longer service life and consistent performance.
  • Hardened and Chrome Plated Piston Rod: Long service life.
  • Fluon Banded Piston: The fluon band provides consistent sealing between the piston and pressure tube which delivers better control and increased durability.
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Rancho – RS7MT Suspension Shock Absorber (Part No.RS77370)

RS7MT Suspension Shock Absorber

from

$104.99
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░F
  • 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°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 Lifetime Warranty
  • BUY WITH CONFIDENCE — Comes with Rancho┐s Limited Lifetime Warranty
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Timbren SES – Rubber Spring, Inside Coil Spring Mount, 7000Lb Weight/Set, Aeon Hollow Rubber (Part No.GMRTT15S)

Rubber Spring, Inside Coil Spring Mount, 7000Lb Weight/Set, Aeon Hollow Rubber

from

$269.99
Timbren suspension enhancement system. The decision is easy, Timbren suspension kits (SES kits) are designed to enhance the suspension of your vehicle. Improve load handling haul heavy loads with ease eliminate sag and sway.

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
  • Economical And Trouble Free
  • Simple And Easy To Install
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Dorman – Suspension Leaf Spring (Part No.22-1533)

Suspension Leaf Spring

from

$101.99
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:
  • Suspension Leaf Spring
  • 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.
  • Direct replacement – this leaf helper spring is designed to match the fit and function of the original spring on specified vehicles
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Timbren SES – Rubber Spring, Frame Mount, 8,000 Lb Weight Capacity Per Set, Aeon Hollow Rubber (Part No.GMFK25D)

Rubber Spring, Frame Mount, 8,000 Lb Weight Capacity Per Set, Aeon Hollow Rubber

from

$306.99
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 – Suspension Leaf Spring (Part No.22-1661)

Suspension Leaf Spring

from

$162.99
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:
  • Suspension Leaf Spring
  • 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.
  • 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
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2021 GMC Sierra 2500 HD Shocks and Struts

Maybe you’re in the middle of a full rebuild of that 2021 GMC Sierra 2500 HD. Maybe you just need a couple of Shocks and Struts. Either way, Advance Auto Parts has 15 different Shocks and Struts in our inventory ranging from $83.99 to $306.99. That means you can find the exact parts or products you need to keep that 2021 GMC Sierra 2500 HD running smoothly.

Shocks and Struts are only as good as their brand. We stock 5 different brands to make sure you have plenty of trusted parts to choose from for your 2021 GMC Sierra 2500 HD. Monroe, Rancho, and KYB are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Shocks and Struts for your 2021 GMC Sierra 2500 HD, but don’t take our word for it – read our customer ratings and reviews and buy with confidence.

So if you’re in the market for aftermarket Shocks and Struts to keep your 2021 GMC Sierra 2500 HD rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Shocks and Struts Brands To Make Your 2021 GMC Sierra 2500 HD Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2021 GMC Sierra 2500 HD demands trusted brand parts and products to keep it running. Many trusted brands of Shocks and Struts make up Advance Auto Parts’ inventory, and all are ready to help make your Sierra 2500 HD the best it can be. Be sure to browse some of our top Shocks and Struts brands and parts.

Popular Rancho Shocks and Struts

We carry Rancho parts in our stock across Front Shock and Struts categories, plus more. For a 2021 GMC Sierra 2500 HD, our most popular Rancho Shocks and Struts include:
RS5000X Shock Absorber
from $83.99
(1)
RS5000X Shock Absorber
Front Shock and Struts

FAQs for 2021 GMC Sierra 2500 HD Shocks and Struts

What are the most purchased Shocks and Struts for the 2021 GMC Sierra 2500 HD?

Out of 15 Shocks and Struts for the 2021 GMC Sierra 2500 HD, the most popular in our inventory are:
RS5000X Shock Absorber
from $83.99
This product is not rated
RS5000X Shock Absorber
Rear Shock and Struts
Reflex Light Truck Shock Absorber
from $143.99
(1)
Reflex Light Truck Shock Absorber
Front Shock and Struts
RS5000X Shock Absorber
from $84.99
This product is not rated
RS5000X Shock Absorber
Front Shock and Struts