Timbren SES Suspension Enhancement System upgrades improve your suspension with: More Safety 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.More Stability 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. More Comfort 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.Features:
Eliminate Vehicle Squatting & Sagging
Cushion Road Shocks
Improve Handling
Satisfaction Guarantee
Lifetime Warranty
Specifications:
Rated for 8600lbs
Overall kit height = 6.25"
Includes:
2x Pre-Assembled Timbren SES springs and mounting spacers
Fitment:
Chevrolet Silverado 2500 2011-2025
Chevrolet Silverado 3500 2011-2025
Gmc Sierra 2500 Hd 2011-2025
Gmc Sierra 3500 2011-2025
Timbren SES Suspension Enhancement System upgrades improve your suspension with: More Safety 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.More Stability 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. More Comfort 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.Features:
Eliminate Vehicle Squatting & Sagging
Cushion Road Shocks
Improve Handling
Satisfaction Guarantee
Lifetime Warranty
Specifications:
Rated for 8600lbs
Overall kit height = 6.25"
Includes:
2x Pre-Assembled Timbren SES springs and mounting spacers
Fitment:
Chevrolet Silverado 2500 2011-2025
Chevrolet Silverado 3500 2011-2025
Gmc Sierra 2500 Hd 2011-2025
Gmc Sierra 3500 2011-2025
Timbren SES Suspension Enhancement System upgrades improve your suspension with: More Safety 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.More Stability 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. More Comfort 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.Features:
Eliminate Vehicle Squatting & Sagging
Cushion Road Shocks
Improve Handling
Satisfaction Guarantee
Lifetime Warranty
Specifications:
Rated for 8600lbs
Overall kit height = 6.25"
Includes:
2x Pre-Assembled Timbren SES springs and mounting spacers
Fitment:
Chevrolet Silverado 2500 2011-2025
Chevrolet Silverado 3500 2011-2025
Gmc Sierra 2500 Hd 2011-2025
Gmc Sierra 3500 2011-2025
Vehicle Fitment
2011–2024 Chevrolet Silverado 2500HD – All Cab & Bed Configurations
2011–2024 Chevrolet Silverado 3500HD – All Cab & Bed Configurations
2011–2024 GMC Sierra 2500HD – All Cab & Bed Configurations
2011–2024 GMC Sierra 3500HD – All Cab & Bed Configurations
Features
Progressive-rate Aeon® hollow rubber springs for enhanced load support
Reduces rear-end sag, sway, and body roll during towing and hauling
Maintains a comfortable ride when unloaded with ¬Ω" to 1¬Ω" clearance gap
Maintenance-free design with no air lines or adjustments required
Simple bolt-on installation using existing mounting points
Durable construction suitable for harsh conditions and heavy-duty use
Backed by Timbren's Lifetime Warranty and 100-Day Money Back Guarantee
Specifications
Part Number: GMRCK25D
Position: Rear Axle
Rated Capacity: 8,600 lbs per pair
Overall Kit Height: 6.25 inches
Material: High-strength rubber with steel mounting brackets
UPC: 809933005263
Warranty: Lifetime Warranty
Included Components
2x Aeon® Hollow Rubber Springs (pre-assembled with mounting spacers)
All necessary mounting hardware
Installation Instructions
Product Description
The Timbren GMRCK25D Rear Suspension Enhancement System (SES) is designed to improve the load-handling capabilities of your 2011–2024 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks. This kit replaces the factory jounce bump stops with progressive-rate Aeon® rubber springs, providing up to 8,600 lbs of additional load support.
Ideal for towing heavy trailers, hauling payloads, or carrying equipment, the GMRCK25D helps eliminate rear-end sag, reduces body roll, and enhances overall stability. The system maintains a comfortable ride when unloaded, thanks to a designed clearance gap between the springs and axle.
Installation is straightforward, requiring no drilling or special tools, and utilizes existing mounting points. The maintenance-free design means no air lines, compressors, or adjustments are needed. Backed by Timbren's Lifetime Warranty and a 100-Day Money Back Guarantee, the GMRCK25D offers a reliable solution for heavy-duty load support.
