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Timbren SES Front Suspension Enhancement System for 2011-2021 GM 2500/3500 HD

Pricing: $252.45

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This SES Suspension Upgrade fits the front suspension of a Chevrolet Silverado 2500HD/3500HD & GMC Sierra 2500/3500 truck. Our hollow rubber springs are engineered to deliver a progressive spring rate. In other words, the more weight that pushes down on the rubber springs (weight from a snowplow or heavy aftermarket accessories – such as a steel bumper) the harder they work to prevent front-end sag. 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.

When extra weight makes your vehicle squat in the back, the front-end lifts up reducing traction on the front tires. Not only that, if the front is too high your headlights will shine up into the eyes of oncoming traffic instead of pointing down on the road ahead. Timbren SES upgrades are designed to keep your vehicle level at all times. This will increase traction on the front tires, improve overall steering and keep your headlights pointing down on the road where they belong. If extra weight makes your vehicle top-heavy, you’re going to experience body roll and sway. There’s nothing more challenging than trying to keep your vehicle moving on a straight path when the load is unstable. Timbren SES upgrades offer you more stability and peace of mind by eliminating suspension sag and reducing body roll & sway. Too much weight can cause your vehicle to bottom out if you’re driving over roads that are bumpy and rough. All this road shock will compromise an otherwise comfortable ride.Improve your ride quality by installing Timbren SES upgrades, guaranteed to provide a softer, smoother ride… empty or loaded.



  • Rated for 8600lbs
  • Improve Handling
  • Lifetime Warranty
  • Cushion Road Shocks
  • Satisfaction Guarantee
  • All necessary hardware
  • 4x Rubber mounting spacers
  • 4x Aeon® hollow rubber springs
  • Tow & Haul With Safety & Confidence
  • Eliminate Vehicle Squatting & Sagging



  • 2011-2021 GMC Sierra 2500/3500 HD
  • 2011-2021 Chevrolet Silverado 2500/3500 HD



  • GMFK25D replaces the bumpstops on the front suspension of the 2011-2021 GMC Sierra and Chevy Silverado 2500HD and 3500HD pickup truck and cab and chassis models.


Shipping Information

  • Item Requires Shipping
  • 88.0 lbs.
  • FREE Ground Shipping

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