Timbren Rear Load Booster Dodge Ram 4500 / 5500 & Sterling Bullet 2WD / 4WD

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The Timbren SES suspension upgrade fits the rear suspension of Dodge Ram 4500 and 5500 trucks. Each laser cut piece of steel is powder-coated to ensure a quality fit. The hollow rubber springs 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 frame to ensure unloaded ride quality. If the truck body is heavy, no clearance is necessary.) Unlike other auxiliary spring systems, the SES suspension upgrade guarantees the best of both worlds.
Timbren recommends that severe service kits be used with a slide-in camper or salt spreader. In fact, any application that requires maximum stability (reducing roll and sway) calls for a severe service upgrade.


  • Eliminates vehicle squatting and sagging
  • Cushion road shocks
  • Improve handling
  • Satisfaction guarantee
  • Lifetime warranty

  • Dodge RAM 4500 2008-2015 2/4WD
  • Dodge RAM 5500 2008-2015 2/4WD
  • Sterling Truck Bullet 2008-2010 2/4WD