
Key Features & Specs:
What’s Included:
Fitment:
The Timbren GMRCK25D Suspension Enhancement System is engineered to strengthen the rear suspension of 2011-2026 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks. Using Timbren’s patented Aeon® hollow rubber springs, this system automatically provides additional support when the vehicle is carrying heavy loads. The progressive rubber springs help control rear-end squat, reduce sway, and limit body roll when towing trailers or hauling equipment. During normal driving conditions the springs remain inactive, helping maintain ride comfort when the truck is unloaded. This rear kit installs with a straightforward bolt-on setup and requires no maintenance after installation. The system is backed by Timbren’s lifetime warranty for dependable long-term performance.