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Timbren rubber suspension enhancement bumpers, pair mounted on brackets
Timbren suspension enhancement kit components laid out: rubber bumpers, brackets, and mounting hardware
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Timbren 2001 Chevrolet Silverado 3500 Rear Suspension Enhancement System

Timbren
TIMGMRCK35S
809933001784
Bump Stops
11 Units In Stock - Ships Next Business Day
$ 468.32 $ 398.07
$ 398.07

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.

Key Features

  • Rated 7,000 lb capacity at the rear axle
  • Laser-cut steel bracket weldments, powder coated
  • Aeon hollow rubber springs engage progressively under load
  • Bolts to factory frame rail, no drilling required
  • Does not affect unloaded ride quality or increase GVWR
  • Limited lifetime warranty

Fitment

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

Specifications

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

What's Included

  • 2 GMR weldments (left and right, powder coated)
  • 2 Aeon hollow rubber springs
  • 2 rubber spacers with bushing
  • Mounting hardware (bolts, nuts, washers)

About the Brand

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.

FAQ

Does this kit increase my truck's GVWR?

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.

Installation Instructions

  1. Raise and safely support the rear of the vehicle.
  2. Remove the factory rubber bump stops from the frame rail.
  3. Bolt the Timbren GMR weldment brackets to the factory frame rail mounting points.
  4. Install the Aeon hollow rubber spring and rubber spacer onto each bracket.
  5. Torque all hardware to the specification listed in the included instructions.
  6. Lower the vehicle and verify at least 1 inch of clearance between the rubber spring and axle at ride height.

Request For Information

Have questions about Timbren 2001 Chevrolet Silverado 3500 Rear Suspension Enhancement System? Fill out the form below and we'll get back to you by the next business day.
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