Timbren Industries GMRG20 SES Suspension Enhancement System - Rear Kit

The Timbren Industries GMRG20 SES (Suspension Enhancement System) is a premium rubber spring suspension upgrade designed to improve load support and ride quality for GMC and Chevrolet trucks. This system replaces traditional bump stops with hollow rubber springs that engage progressively under load, providing support exactly when you need it without compromising unloaded ride comfort.

Key Features:

• Hollow rubber Aeon spring technology provides progressive load support up to 6,000 lbs
• Installs in place of factory bump stops with no drilling required
• Maintenance-free design with no air bags to leak or adjust
• Eliminates squat, sway, and body roll when towing or hauling heavy loads
• Improves steering response and braking control under load
• Lifetime warranty against defects in materials and workmanship
• Made in Canada from high-quality natural rubber compounds

The GMRG20 installs quickly using basic hand tools and comes complete with all necessary mounting hardware and detailed instructions. Unlike air bag systems, Timbren SES requires no air lines, compressors, or adjustments—simply install and drive. The progressive engagement means you maintain your factory ride quality when unloaded, while gaining substantial support capacity when you need it most.