Size Chart
×
Timbren's SES Suspension Enhancement System replaces the rear bump stops on select Chevrolet Silverado 3500 and GMC Sierra 3500 trucks with a rated 7,000-lb capacity hollow rubber spring and bracket kit. Laser-cut steel weldments bolt to the factory frame rail, and the Aeon hollow rubber spring engages progressively as the rear suspension compresses under load, reducing sag and sway without altering unloaded ride quality or GVWR.
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2002 | GMC | Sierra 3500 | SL |
| 2006 | GMC | Sierra 3500 | SL |
| 2001-2006 | GMC | Sierra 3500 | SLE |
| 2001-2006 | GMC | Sierra 3500 | SLT |
| 2004-2006 | GMC | Sierra 3500 | WT |
| 2007 | GMC | Sierra 3500 Classic | SL |
| 2007 | GMC | Sierra 3500 Classic | SLE |
| 2007 | GMC | Sierra 3500 Classic | SLT |
| 2001-2005 | Chevrolet | Silverado 3500 | Base |
| 2001-2006 | Chevrolet | Silverado 3500 | LS |
| 2001-2006 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2006 | Chevrolet | Silverado 3500 | WT |
| 2007 | Chevrolet | Silverado 3500 Classic | LS |
| 2007 | Chevrolet | Silverado 3500 Classic | LT |
| 2007 | Chevrolet | Silverado 3500 Classic | WT |
| 2007-2010 | Chevrolet | Silverado 3500 HD | LT |
| 2007-2010 | Chevrolet | Silverado 3500 HD | LTZ |
| 2007-2010 | Chevrolet | Silverado 3500 HD | WT |
| 2002-2005 | GMC | Sierra 3500 | Base |
| 2007 | GMC | Sierra 3500 Classic | WT |
| 2007-2010 | GMC | Sierra 3500 HD | SLE |
| 2007-2010 | GMC | Sierra 3500 HD | SLT |
| 2007-2010 | GMC | Sierra 3500 HD | WT |
| Detail | Value |
|---|---|
| Manufacturer part number | GMRCK35S |
| Position | Rear axle |
| Rated capacity | 7,000 lbs |
| Bracket material | Laser-cut steel, powder coated |
| Spring type | Aeon hollow rubber |
| Warranty | Limited lifetime |
Timbren has manufactured rubber-spring suspension enhancement systems in the USA since 1984, used to reduce sag, sway, and bottoming-out on trucks and vans without the ride-quality tradeoffs of heavier leaf springs or air bags.
No, this system reduces sag and improves load leveling but does not increase the factory Gross Vehicle Weight Rating.
Does this kit affect ride quality when unloaded?No, the rubber spring sits above the axle with clearance so it does not engage until the suspension compresses under load.
Is drilling required to install this kit?No, the brackets bolt to existing factory frame rail mounting points.
What is the rated capacity of this kit?This kit is rated for 7,000 lbs at the rear axle.
What does this kit replace?It replaces the factory rubber bump stops on the rear suspension with a load-leveling Aeon rubber spring and bracket assembly.
Is this kit compatible with air bag suspension kits?Timbren SES systems are typically used as a bump-stop replacement independent of air bag kits; consult Timbren if combining suspension upgrades.
What is the warranty on this kit?Timbren backs this SES kit with a limited lifetime warranty.
Will this fit every trim of the listed years?This kit fits the specific trims and years listed in the fitment table; confirm your exact trim before ordering.
Bump Stops Bump stops protect shocks, springs, frames and suspension links when travel reaches the end of its range. Choose hydraulic, urethane, rubber or suspension-enhancement styles for trucks, Jeeps and performance builds. Black Ops Auto Works carries 187 bump stop SKUs including hydraulic cans, progressive urethane stops, rubber replacements, spacers, brackets and load-support systems with vehicle-specific application data. What This Bump Stops Collection Covers The range includes Silverado and Sierra HD, F-150 and Super Duty, Ram, Jeep Wrangler, Toyota Tacoma and Tundra, Ford Bronco, Mustang and off-road suspension applications. Product selection depends on travel, mounting location and suspension design. Hydraulic and Progressive Bump Stops Hydraulic bump stops use fluid damping to soften hard bottoming on long-travel and high-speed off-road suspension. Progressive urethane and rubber stops offer a compact way to add rising-rate support near full compression. Truck Load S...
View Bump Stops Products
Chevrolet Silverado parts and accessories for the 1500, 2500 HD, and 3500 HD are stocked at Black Ops Auto Works. Shop cold air intakes, cat-back and axle-back exhaust systems, leveling and lift kits, lowering kits, brake pads, rotors and big brake kits, tonneau covers, grille guards, running boards, floor liners, oil catch cans, fuel injectors, LED lighting, and cast and forged wheels for Silverado 1500, 2500 HD, 3500 HD, Trail Boss, RST, LTZ, High Country, ZR2, and Duramax Diesel trims. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 2,566 Chevrolet Silverado SKUs across performance, appearance, towing, and off-road categories. What This Collection Covers The Chevrolet Silverado lineup spans the light-duty 1500 and the heavy-duty 2500 HD and 3500 HD, built on the GM T1XX and related platforms. This collection combines OE-style replacement parts with performance and appearance ...
View Chevrolet Silverado Parts & Accessories Products
Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...
View Suspension Products
Timbren SES suspension enhancement kits and heavy-duty rubber springs for trucks, SUVs, trailers, and towing builds are stocked at Black Ops Auto Works. Shop rear and front SES kits, Aeon rubber springs, bump stops, axle-less trailer suspension, load-support kits, trailer axle components, and application-specific suspension aids for F-250, F-350, Ram 2500, Ram 3500, Silverado HD, Sierra HD, Tacoma, Tundra, and trailer axles. Every product is filterable by year, make, model, trim, drivetrain, axle, and suspension position so the correct kit ships the first time. Black Ops Auto Works carries 178 Timbren SKUs across heavy-duty suspension aids, load-support components, bump stops, and trailer suspension solutions. What This Timbren Collection Covers Timbren specializes in heavy-duty rubber suspension enhancement systems for trucks and trailers that carry payload, tow equipment, or need additional control under load. These truck-focused products provide progressive support as the veh...
View Timbren Products