
Key Features & Specs:
What’s Included:
Fitment:
The Timbren GMRCK15S Suspension Enhancement System is built to strengthen the rear suspension of Chevrolet Silverado 1500 and GMC Sierra 1500 trucks from 1999-2019 equipped with leaf spring rear suspension. Featuring Timbren’s patented Aeon® hollow rubber springs, this system helps control rear-end squat, sway, and body roll when towing trailers or hauling heavy cargo. The progressive rubber springs remain inactive during normal driving and engage as additional weight is applied, helping maintain ride comfort while providing added load support. The rear kit installs easily with a bolt-on design and operates maintenance-free once installed. For dependable performance over time, the system is backed by Timbren’s lifetime warranty.