2012 GMC Sierra 3500 HD Suspension Parts

Backed by superior materials and rigorous testing, MOOG control arm bushings deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:

• HIGHLY PRECISE ENGINEERING — Optimized for quiet operation and resistance to wear, salt, road grime and oils
• PREMIUM MATERIALS — Made from high-quality elastomer compounds for durability and ride performance
• OE-STYLE DESIGN — Engineered to match or exceed OE requirements
• RIGOROUS TESTING — Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
• Bushings manufactured from high quality elastomer compounds for durability and ride performance
• Assembled with proper precompression for ultimate in performance and feel

Firestone heavy duty Ride Rite air helper springs are the workhorse of our air helper spring line. The double convoluted air springs offer maximum load support as well as years of worry free service. Ride Rite air helper springs can be installed on most light trucks, motor homes, RVs, SUVs and vans. Ride Rite air helper springs are installed between the frame of the vehicle and the suspension, providing load support through the use of air pressure. Firestone is committed to providing the customer with premium air helper spring kits. Ride Rite air helper springs have become synonymous with quality, durability, and customer support. Each application is specifically designed to maximize the safe load carrying capacity, stability, and ride quality of the vehicle. Ride Rite air helper springs utilize a pair of convoluted air springs which can be adjusted for changing loads. These air springs are capable of 3200 to 5000 Pounds of load leveling capacity. Ride Rite air helper springs enhance the ride by reducing inter leaf friction. Please remember that air springs do not increase the Load Carrying capacity of your vehicle. Ride Rite kits are application specific and are designed for hassle free fitment to the OEM suspension.

Product Features:

• Keep The Vehicle Level Improves Steering Control And Braking Effectiveness, Levels Headlight Beams And Reduces Tire Wear
• Level Off Center Loads, Individual Inflation Valves Allow For Adjustment Side To Side
• Reduce Suspension Fatigue Keeps Leaf Springs From Permanent Sagging Under Repeated Or Constant Load
• Reduce Bottoming Out Protective Air Cushion Softens Contact Between The Axle And Frame
• Increase Vehicle Stability, Absorbs Road Shock, Providing Ideal Ride Conditions For Passengers And Load

Designed to provide inflation control of your air helper springs. This kit will be an asset to your vehicle, meeting nearly all of your air supply needs.

Product Features:

• Designed To Provide Inflation Control Of Your Air Helper Springs
• Provides An Instant Air Source For The Air Helper Springs Or Accessories
• Dual Point Fill (Both Air Springs Fill Independently Of Each Other)
• Light Duty Compressor Specs (120 Pounds Per Square Inch Max Air Pressure, 9 Percent Duty Cycle, 0.32 CFM)

Level out your Chevrolet® Silverado or GMC® Sierra 2500/35000 truck with the Rancho® 2.25-in. LEVEL IT torsion key system. Featuring bolt-on installation, the kit comes with Rancho RS500®X front shocks to accommodate tires up to 33-in.

Product Features:

• COMPATIBILITY — Designed for Chevy Silverado 2500/3500 and GMC Sierra 2500/3500 2/4WD heavy-duty trucks
• LEVELED STANCE — Reduces factory rake and evens out truck’s stance
• COMPLETE SOLUTION — Kit includes two LEVEL IT torsion keys and two Rancho RS5000®X extended length front shocks to accommodate tires up to 33-in. (tire size varies between manufacturers)
• MAINTAINS OE RIDE — Keeps factory ride quality for dependable performance
• ENGINEERED TO LAST — Torsion keys feature forged construction for long life and durable e-coat finish to resist rust and corrosion
• EASY TO INSTALL — Bolt-on installation for an easy upgrade
• NOTES — Rear RS5000®X shocks sold separately

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Get ahead of fatigued or rusted leaf spring shackles before they become dangerous. Made of sturdy steel with a power coated finish to resist corrosion, this leaf spring shackle is a direct replacement for your vehicle’s stock shackle.

Product Features:

• Direct replacement – This leaf spring shackle fits and performs like original equipment shackle
• Quality construction – manufactured from durable steel and powder coated for corrosion resistance and a long service life
• Excellent value – original equipment quality at a lower price
• Ready to install – all essential hardware is included for an easy installation

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

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

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.

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

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

By constantly introducing design enhancements that extend product life and simplify installation and replacement, MOOG has earned its reputation as the chassis industry’s Problem Solver.

Product Features:

• Easy to install
• Restores like-new steering and handling
• Engineered to provide long life and dependability
• Construction and design validated by MOOG engineers
• Incorporates proven design and engineering features
• Greaseable socket reduces corrosion and wear by allowing new lubricant to flush contaminants

Adds a dramatic amount of performance and durability to any vehicle, cars, trucks and SUVs. Helps the vehicle be in control – when maneuvering through turns, during standing start accelerations, braking, even over bumps and berms. Made of Energy’s Hyper-Flex performance polyurethane which lasts 5 -10 times longer than conventional rubber components.

Product Features:

• Made of Superior Hyper-Flex+ Material
• Adds Dramatic Amount of Performance/Durability
• Helps Vehicle Be in Control
• Allows the Suspension to Function Properly

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

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

Valvoline Multi-Vehicle Transfer Case Fluid is a full synthetic product meeting the performance needs for transfer cases recommending Ford XL-12 and GM Auto Trak II specifications or ATF fluids (DEX/MERC, ATF +4, etc).

Product Features:

• Recommended for use in most Ford, GM and FCA (Dodge, Jeep) models
• Formulated to help prevent gear wear and protect against rust and corrosion
• Formulated to deliver enhanced protection against deposits
• Helps provide better protection during extreme operating conditions

Valvoline DEXRON®-VI ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors’ DEXRON®-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON®-II and/or DEXRON®-III are recommended. Recommended for use in the following applications: DEXRON®-VI, DEXRON®-III, DEXRON®-II, and Allison C-4.

Product Features:

• Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
• Enhanced anti-shudder protection for smooth shifting and maximum power transfer
• Developed with anti-wear technology to help improve transmission durability
• Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures

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

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

Ride-Rite air springs utilize a pair of convoluted air springs, which can be adjusted for changing loads. These air springs are capable of 3,200 to 5,000 Pound of load leveling capacity. Ride-Rite air helper springs enhance the ride by reducing inter-leaf friction. Please remember that air springs do not increase the load carrying capacity of your vehicle. Ride-Rite air spring kits are installed between the frame of the vehicle and the suspension, providing load support through the use of air pressure. Ride-Rite air spring kits can be installed on most light trucks, motorhomes, RV’s, Suv and vans.

Product Features:

• Enhances Safe Load-Carrying Capacity, Stability, Ride Quality And Brake Effectiveness
• Most Kits Are No-Drill Systems
• Each Product Goes Through Robust, Comprehensive Testing To Deliver Durability You Can Depend On
• Comes With Everything For A Quick, Easy To Install

Suspension Kit

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

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

The Air Command Standard Duty Dual Electric Air Compressor System Kit Allows You To Adjust Your Air Springs With The Touch Of A Button. It Offers A Built in Air Source For Your Suspension System, Making It Easy To Alter Your Springs To Align With The Load Type And Environment. When Shopping For Air Accessories, You will Find That Firestone Air Command Standard Duty Dual Electric Air Compressor System Kit Is Designed To Have A Couple Of Special Benefits. First, The Air Command Standard Duty Dual Electric Air Compressor System Kit Comes Ready To Install, So You Can Set It Up And Get Back To The Road where You Want To Be. Just Connect A Few Wires To The Compressor And A Few To Your Vehicle. The Air Lines And Wiring Harness Can Be Plugged Into The Same Side Of The Unit For Smoother Routing Of Lines And Power Supply. After The Air Command Standard Duty Dual Electric Air Compressor System Kit Is Properly Installed, You Can Make Pressure Adjustments By Pressing A Single Button. This Air Command Standard Duty Dual Electric Air Compressor System Kit Component Allows For Side To Side Or Front to rear Leveling, Real time Pressure Readout, And Dual Left And Right PSI And Pressure Control Readouts. The Air Command Standard Duty Dual Electric Air Compressor System Kit Easy to read Needle Gauge Can Be Viewed Day Or Night, Without Straining Or Squinting Your Eyes. Prior To Installing The Air Command Standard Duty Dual Electric Air Compressor System Kit, Review The Instructions And Identify All Of The Components To Help Make Sure You Get Maximum Performance From Both Your Air Springs And Air Command Standard Duty Dual Electric Air Compressor System Kit. The Installation Steps Are Different Depending On Whether You are Enhancing An Existing Air Helper Spring System With The Air Command Standard Duty Dual Electric Air Compressor System Kit Or Installing It With A New Air Spring System.

Product Features:

• Individual Air Accessory Components Are Also Available, Including Compressors, Air Tanks, And Mounting Solutions, Providing A Wide Variety Of Air Control Assist Solutions
• Adjust The Ride For Various Load And Road Conditions With A Switch, Remote Or Mobile App
• Provides An Instant Air Source For The Air Helper Springs Or Accessories
• Dual Point Fill (Both Air Springs Fill Independently Of Each Other)
• Light Duty Compressor Specs (120 PSI Max Air Pressure, 9 Percent Duty Cycle, 0.32 CFM)

ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

• Protective outer coverings help provide long-lasting durability
• Color-coded wires allow for easy installation
• GM-recommended replacement part for your GM vehicle’s original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended replacements for your vehicle’s original components. These original equipment pigtail connectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Product Features:

• Protective outer coverings help provide long-lasting durability
• Color-coded wires allow for easy installation
• GM-recommended replacement part for your GM vehicle’s original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function