GMRCK35MA – Rear Axle SES Suspension Upgrade

GMRCK35MA - Rear Axle SES Suspension Upgrade

This SES Suspension Upgrade fits the rear suspension of a Chevrolet & GMC pickup trucks. Each laser cut piece of steel is 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. 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.

We recommend Severe Service kits only be used with a slide-in camper, salt spreader, corner mounted crane or other aerial device. In fact, any application that requires maximum stability (reducing roll and sway) calls for a Severe Service upgrade. (Click here for more info on Severe Service recommendations)



Product Features

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

Customer Reviews

"The Timbren system is the answer for rear end sag and soft handling! My 35ft 5th wheel handles much better, and I recommend Timbren without reservation."

- Larry V. - SD

“Timbren's work amazing! Absolutely as good or even better than air bags! Did it myself and only had time to drink 2 beer doing it! Easy install. Thanks for the advice. Simple yet very effective.”

Jonny K - NB

Fitment Checklist

Chevrolet C3500 Pickup
2WD Only
Chevrolet K1500 Pickup
4WD Only
Chevrolet K2500 Pickup
4WD Only
Chevrolet K3500 Pickup
4WD Only
Chevrolet R30 Pickup
4WD Only
Chevrolet R3500 Pickup
4WD Only
GMC C3500 Pickup
2WD Only
GMC K2500 Pickup
4WD Only
GMC K3500 Pickup
2WD Only
GMC R3500 Pickup
4WD Only

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