2021 GMC Sierra 3500 HD Air Suspension and Kits

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

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

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
• Limited Lifetime Warranty

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

TrailFX has produced a line of leveling and rear block kits that are engineered to provide consumers with the very best in quality performance at an attractive price point. TrailFX suspension products allow you to level your vehicle or raise it for additional tire clearance, all while maintaining your factory ride.

Product Features:

• Maintains Factory Ride
• Allows For Rear Rake For Towing Or Hauling
• Simple Installation
• Limited Lifetime Warranty Against Defects In Design, Operation, Workmanship And Materials

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

Ride Rite(TM) air helper springs mount between the frame and the suspension of light trucks, vans, and motor homes. The heavy duty convoluted air springs will handle all leveling needs with load carrying capacities between 3200 to 5000 Pounds per set.

Product Features:

• Level The Vehicle Front To Rear And Side To Side
• Adjustability 5 To 100 PSI
• Stabilize The Vehicle While Loaded
• Maximize Vehicles Load Carrying Capacity
• Everything Is Included For A Quick, Easy Installation. Brackets, Air Springs, Hardware, Air Line, And Separate Valves For Manual Inflation

TrailFX has produced a line of leveling and rear block kits that are engineered to provide consumers with the very best in quality performance at an attractive price point. TrailFX suspension products allow you to level your vehicle or raise it for additional tire clearance, all while maintaining your factory ride.

Product Features:

• Maintains Factory Ride
• Allows For Rear Rake For Towing Or Hauling
• Simple Installation
• Limited Lifetime Warranty Against Defects In Design, Operation, Workmanship And Materials

The ReadyLift(R) Torsion Bar Key kits consist of a set of re-engineered forged torsion adjustment keys along with shorter bolts to prevent over rotation of the Torsion Bars. Some vehicle specific kit also feature front shock relocation brackets. This design levels out the front of all Torsion Bar equipped 2WD and 4WD trucks and SUVs without compromising the OEM factory ride and allows for up to 33 Inch tall tires with wheel combinations up to 9 Inch Wide. These forged keys exceed manufacturer strength standards and are guaranteed for life. ReadyLift Torsion Keys use manufacturing, materials and tolerances in order to increase the strength of our keys. In addition to forging the keys using High Carbon Steel, the Torsion Key to Torsion Bar tolerances are extremely tight to insure the integrity of the key or Torsion Bar relationship. These tight tolerances GM blue print tolerances from bar to key is 17/1000 THS Increase the surface area contact between the Torsion Key and bar, increasing the strength of the overall design and improving functionality. In order to keep these tight tolerances, occasionally a mallet must be used during installation to fit the Torsion Key on to the bar.

Product Features:

• Guaranteed To Keep Your Factory Ride
• Guaranteed To Never Wear Or Break Or Fail
• Guaranteed Toughest Finish
• Guaranteed Safest Way To Level Lift

TrailFX has produced a line of leveling and rear block kits that are engineered to provide consumers with the very best in quality performance at an attractive price point. TrailFX suspension products allow you to level your vehicle or raise it for additional tire clearance, all while maintaining your factory ride.

Product Features:

• Gain Tire And Ground Clearance
• Easily Removed For Leased Vehicles
• Guaranteed For The Life Of Your Vehicle
• The Fastest, Least Expensive Way To Level Or Lift Your Truck
• The Strongest And Safest Forged Torsion Key Leveling System On The Market Today
• Stock Ride Quality Retained When Properly Installed

The Firestone Ride-Rite All-In-One Analog Kit, part, comes with everything you need to level off-center loads, increase ride quality and encourage road safety when hauling and towing. All-In-One kits save you from having to shop for individual parts and are more affordable than purchasing parts separately. Plus, Firestone All-In-One kit elements are designed for ultimate compatibility, so you enjoy the most streamlined product installation and performance. GMC/Chevrolet Firestone Ride-Rite All-In-One Analog Kits pair a Ride-Rite air helper spring kit with an air compressor in one easy-to-install package. The Ride-Rite kit uses air pressure to balance off-center loads, reduce stress on the suspension system and encourage vehicle confidence. Subsequently, your ride comfort is positively impacted.

Product Features:

• Provides An Instant Air Source For The Air Helper Springs Or Accessories
• No Drill Design
• Easy To Install

Suspension Kit

Leveraging our history of providing high-performance air springs for the commercial trucking industry, we engineered our toughest line of light-duty aftermarket air springs, RED (TM) Label. These air spring kits are made with commercial-grade materials and can level up to 7500 pound. RED Label air spring kits utilize a pair of convoluted air springs, to raise your truck back up to manufacturers height while hauling or towing heavy. They are built to extreme specifications found in the most demanding applications. The same rubber from our Airide (TM) product line used on commercial trucks around the world paired with a commercial grade cord which gives you added durability and performance.

Product Features:

• Utilize High Strength Steel Alloy Brackets
• Enhanced Coating Technology Protects Against Elemental Conditions, Such As Corrosive DeIcing Agents And Salt Spray
• Handle Up To 150 PSI And Level Loads Up To 7500 Pound

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

Max Performance Synthetic Power Steering Fluid

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