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Timbren Kit for Chevy 2500 Sierra, Silverado, 2500HD (1999-2010) - 2WD/4WD - REAR


Model: GMRCK25S
by Timbren
5 stars 4.8/5Read Reviews

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Retail Price: $364.95
Your Price: $280.50
+ 10% OFF SALE

Sale Price: $252.45

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Front / Rear



From highway driving, to heavy load applications, the Timbren Suspension Enhancement System will protect your current suspension, and will improve the performance of your vehicle whether it’s a pickup, suv, medium duty straight truck, or a full size class 8 truck.

The Timbren Suspension Load Booster is designed to provide stability, reduce swag, eliminate sway, and level the vehicle for an overall improved, "rubber cushion" ride - on or off the road. All while maintaining the current ride height.

If your 2500 Sierra, Silverado, 2500HD leans on turns and curves, drifts on the highway, bottoms out, or provides a general bumpy ride when loaded, a Timbren Suspension Kit is the solution for your suspension problem.

The Timbren Kits we offer are extremely simple to install, require no maintenance, and come with a lifetime of use backed by warranty. The award winning "over load" systems are made of Rubber Aeon Springs and designed to provide maximum performance for stock suspensions.

  • 6,000 lbs. Level Load Capacity
  • Reduces sag and sway
  • Eliminate vehicle from bottoming out
  • Perfect for handling heavy cargo loads
  • Ride quality unaffected when not loaded
  • Sold as Pair (left and right)
Installation Instructions

GMRCK25S Instructions

Product Video

Timbren Kits are made to increase the "level-load" carrying capacity of your vehicle. Never load the vehicle beyond the manufacturer's maximum gross vehicle weight rating (GVWR).

Vehicle Applications
  • Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2009, 2010
  • Model: Chevrolet 2500 Sierra, Silverado, 2500HD
CA Residents: Prop 65 Warning
Customer Reviews
5 stars 4.8 / 5This item is rated 4.8 out of 5 based on 4 customer reviews.
5 of 5 Stars

by Eric S

Easy to install. Works great. When the truck is loaded or the camper is on it, the rear suspension only only squats about an inch. Handling and headlight aim are basically like it is empty. Really reduced sway on tight corners and wit cross winds. Stock ride unaffected when it is empty. No need to add air or play with leaky air bags. Highly recommend.

5 of 5 Stars

by Jaylin N

I am very satisfied so far with the Timbren SES. It is great for the weight of tools in the truck and full time trailer towing. I like the simplicity and capacity. I would install it immediately after buying another truck.

5 of 5 Stars

by Douglas E

The Timbrens worked out really well. Easy to install and really help to stabilize my camper. it Reduces sag and sway, one thing which excite me more is 6,000 lbs. Level Load Capacity. which is very beneficial

4 of 5 Stars

by Richard J

I purchased this kit with the purpose of reducing rear end sag and to improve handling with my camper on. I also purchased Bilstein 4600 shocks at the suggestion of your rep. While the sag was reduced and the bed now sits level with the camper on, I now have a sway problem that was not evident prior to this installation. It is most evident while towing my cargo trailer with the camper on. The kit was easy to install. I would cautiously recommend this product.

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