Timbren Industries GMRK30 SES Suspension Enhancement System Rubber Helper Springs

The Timbren Industries GMRK30 SES (Suspension Enhancement System) provides a reliable suspension upgrade for vehicles that regularly tow trailers or haul heavy loads. This hollow rubber spring system installs between the frame and axle to deliver progressive load support without the maintenance requirements of air bags or the harsh ride of solid steel helpers.

Key Features:

• Hollow rubber spring design provides progressive cushioning that activates under load
• No air lines, compressors, or inflation maintenance required
• Reduces body roll, sway, and rear-end squat when towing or hauling
• Improves vehicle stability and steering control under heavy loads
• Maintains factory ride quality when unloaded—springs only engage when needed
• Durable Aeon hollow rubber construction resists cracking and weathering
• Bolt-on installation with no drilling or permanent modifications
• Lifetime warranty against defects in materials and workmanship

The GMRK30 kit includes a pair of rubber helper springs and all necessary mounting hardware. This suspension enhancement system is ideal for pickup trucks and SUVs that experience sagging, bottoming out, or poor handling when loaded. By adding progressive support exactly when it's needed, Timbren SES upgrades help maximize payload capacity while preserving ride comfort during everyday driving.