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Timbren SES Suspension Enhancement System - Rear Kit, manufacturer part number GMRCK35S, is a new Timbren bump stops product selected by the verified year, make, and model applications shown below. Confirm the part number, vehicle configuration, axle or brake position, dimensions, rated capacity when applicable, and every manufacturer exclusion before ordering.
Key Features
- No, this system reduces sag and improves load leveling but does not increase the factory Gross Vehicle Weight Rating.
- No, the rubber spring sits above the axle with clearance so it does not engage until the suspension compresses under load.
- This kit is rated for 7,000 lbs at the rear axle.
- It replaces the factory rubber bump stops on the rear suspension with a load-leveling Aeon rubber spring and bracket assembly.
- Rear Load-Leveling Suspension Enhancement for the Silverado/Sierra 3500 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.
Fitment
| Years | Make | Model | Application Notes |
|---|---|---|---|
| 2001-2006 | Chevrolet | Silverado 3500 | Confirm drivetrain, factory suspension, lift height, and exclusions |
| 2007 | Chevrolet | Silverado 3500 Classic | Confirm drivetrain, factory suspension, lift height, and exclusions |
| 2007-2010 | Chevrolet | Silverado 3500 HD | Confirm drivetrain, factory suspension, lift height, and exclusions |
| 2001-2006 | GMC | Sierra 3500 | Confirm drivetrain, factory suspension, lift height, and exclusions |
| 2007 | GMC | Sierra 3500 Classic | Confirm drivetrain, factory suspension, lift height, and exclusions |
| 2007-2010 | GMC | Sierra 3500 HD | Confirm drivetrain, factory suspension, lift height, and exclusions |
Specifications
| Brand | Timbren |
|---|---|
| Manufacturer Part Number | GMRCK35S |
| Product Type | Bump Stops |
| Application Type | Vehicle specific |
| Condition | New |
| Pricing Policy | Manufacturer MAP protected |
What's Included
One new Timbren bump stops package identified by manufacturer part number GMRCK35S, plus only the springs, brackets, pads, rotors, arms, spacers, bushings, fasteners, and other components expressly supplied for this exact part number.
About Timbren
Timbren manufactures SES load-support systems, Active Off-Road Bumpstops, Axle-Less trailer suspensions, and BES severe-duty brake components for towing, hauling, off-road, fleet, and trailer applications.
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Frequently Asked Questions
How do I confirm Timbren GMRCK35S fits my vehicle?
Match the exact year, make, model, axle or brake position, drivetrain, chassis configuration, and every published exclusion. Model name alone is not enough.
Are similar Timbren parts interchangeable with GMRCK35S?
No. Mounting geometry, spring rate, capacity, rotor dimensions, pad shape, position, and included hardware can differ between part numbers.
What should be checked after installing Timbren GMRCK35S?
Verify every fastener, brake line, ABS wire, suspension clearance, wheel clearance, ride height, and braking operation that applies to the product. Follow the current manufacturer instructions.
Installation
Follow the current Timbren instructions and vehicle service procedure for this exact part number. Confirm torque specifications, brake-line and ABS-wire routing, suspension and driveline clearance, rotor and pad bedding requirements, wheel clearance, and final braking operation as applicable. Professional installation is recommended for brake and load-bearing suspension components.
Timbren
Shop Timbren SES suspension enhancement systems, Active Off-Road Bumpstops, BES severe-duty brake pads and rotors, spacer kits, and Axle-Less trailer suspension by exact manufacturer part number and verified application.Timbren Product Families SES load-support and severe-service suspension kits Active Off-Road Bumpstops and lift spacer kits BES severe-duty brake pads and coated brake rotors Axle-Less trailer suspension systems and components Choosing the Correct Timbren ProductConfirm the exact manufacturer part number, year, make, model, axle or brake position, drivetrain, chassis configuration, rated capacity, dimensions, and every published exclusion. Engine, trim, cab, bed, and chassis notes must remain application details rather than model tags.About TimbrenTimbren manufactures towing, hauling, off-road, fleet, brake, and trailer suspension products built around Aeon spring technology and application-specific vehicle hardware.Related Collections Timbren products Suspension par...
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