Timbren Rear Suspension Enhancement System: 2011+ GM 3500 HD Trucks

Timbren Rear Suspension Enhancement System: 2011+ GM 3500 HD Trucks

Lighten the load with the Timbren Rear Suspension Enhancement System for the 2011+ Cheverolet Silverado and GMC Sierra 3500 HD models. Built specifically for tow rigs transporting dirt bikes, motorcycles, UTVs, or fully loaded race trailers, the Timbren Rear Suspension Enhancement System is designed to reduce suspension sag for improved hauling to the next powersports venture.

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  • Designed to reduce squat and sway while towing or hauling powersports vehicles
  • Hollow Aeon rubber springs offer up to 8,600 lbs of progressive load support
  • Ideal for trucks pulling UTVs, motorcycles, dirt bikes, or enclosed race trailers
  • Maintenance-free bolt-on install with zero air lines or compressors needed

Product Details
Lighten the load with the Timbren Rear Suspension Enhancement System for the 2011+ Cheverolet Silverado and GMC Sierra 3500 HD models. Built specifically for tow rigs transporting dirt bikes, motorcycles, UTVs, or fully loaded race trailers, the Timbren Rear Suspension Enhancement System is designed to reduce suspension sag for improved hauling to the next powersports venture. This kit is engineered to replace the OEM bump stops with progressive-rate Aeon rubber springs that activate under load, providing up to 8,600 lbs of load support to the rear suspension. This reduces rear-end sag, curbs sway, and improves front tire grip, all without compromising unloaded ride comfort. Installation is bolt-on with no drilling or air system required, and the rugged rubber springs require no upkeep. Whether hauling to the dunes, paddock, or trails, this system keeps the truck level and controlled.

Application: 
2011+ Chevrolet Silverado 3500 HD, 2011+ GMC Sierra 3500 HD 


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GMRCK25D, Timbren 2011 Chevrolet Silverado 2500 HD Rear Suspension Enhancement System
MAP: $269.36

Founded in 1968, Timbren has spent over five decades redefining suspension performance with its industry-leading rubber spring technology. As a family-owned company, Timbren designs and manufactures suspension enhancement systems that prioritize ride quality, safety, and simplicity engineered for the best control when towing, hauling, or off-roading. From its signature Suspension Enhancement System kits to innovative axle-less trailer suspensions, Timbren products are built with ISO-certified precision and tested for real-world durability. Trusted by fleets, enthusiasts, and OEMs alike, Timbren delivers dependable suspension solutions engineered to perform under pressure.