TIMBREN SES Suspension Enhancement System Rear It GMRTT35S – autopartstoys.com


  • Eliminate Vehicle Squatting & Sagging
  • Cushion Road Shocks
  • Improve Handling
  • Satisfaction Guarantee
  • Lifetime Warranty


SES kits are designed to keep the vehicle level at all times and prevent roll and sway. The Aeon® rubber springs found in a Timbren SES kit have a progressive spring rate. In other words, you are guaranteed a soft, comfortable ride at all times. Each laser cut piece of steel is precision bent and powder-coated to ensure a quality fit. We’ve engineered our hollow rubber springs to deliver a progressive spring rate. In other words, the more weight that pushes down on the rubber springs the harder they work to prevent rear end sag. Whether you’re pulling a trailer or carrying a heavy load in the bed of your truck, our hollow rubber springs adjust automatically to keep the vehicle level at all times. This SES Suspension Upgrade replaces the jounce stop on the frame. Its unique design ensures superb ride quality – loaded or unloaded. (There should be a ½” to 1 ½” gap between rubber spring and axle to ensure unloaded ride quality.) Unlike other auxiliary spring systems, the SES Suspension Upgrade guarantees the best of both worlds. GMRTT35D replaces the bumpstops on the rear suspension of the 2011-2020 GMC Sierra and Chevy Silverado 2500HD pickup truck models and 3500HD pickup truck and cab and chassis models. This kit is rated at 8000 lbs capacity. Even though you’re increasing the spring rate by adding this upgrade, this does not increase the GVWR (Gross Vehicle Weight Rating). Please make sure that the load does not exceed the GVWR set by the manufacturer.Timbren Suspension Kits (SES Kits) are designed to enhance the suspension of your vehicle. Easiest to use: Rubber cushions absorb road shocks and automatically adjust to uneven loads or road conditions. Easiest to maintain: There are no airlines or fittings to allow leaks. Simply bolt the kit on and you are set for a lifetime of trouble free suspension. Easiest to install: There are no holes to drill, no airlines to route and SES Kits can be installed in a matter of minutes using basic hand tools. The softer ride quality of todays trucks and the mediocre suspensions found on most trailers can cause excessive trailer sway, instability and suspension settling. Timbrens high performance suspension packages will ensure added safety and peace of mind.



  • 2001-2010 Gmc Sierra 3500 Hd
  • 2001-2010 Gmc Sierra 2500 Hd
  • 2001-2010 Chevrolet Silverado 3500 Hd
  • 1999-2010 Chevrolet Silverado 2500 Hd
  • 2001-2010 Chevrolet Silverado 3500
  • 1999-2010 Chevrolet Silverado 2500 
  • 2007 Gmc Sierra 3500 Classic
  • 2005-2007 Gmc Sierra 1500 Hd
  • 2007 Gmc Sierra 1500 Classic
  • 2000-2006 Gmc Sierra 1500
  • 1999-2006 Chevrolet Silverado 1500
  • 2005-2007 Chevrolet Silverado 1500 Hd
  • 2007 Chevrolet Silverado 1500 Classic



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