2003-2009 GM 4500/5500 4-Link Rear Air Suspension


Ride comfort is the very best reason to install a highly engineered air suspension kit from Kelderman Air Suspension. This 4-Link Rear Air Suspension kit smoothes the bumps in the road while keeping the truck bed level, even with the addition of heavy payloads.

Uniquely designed, Kelderman's kit provides the ultimate in air ride comfort and operator control. Kelderman's kit features parallel trailing arms to eliminate axle twist and minimizes pinion angle movement, transferring power to the ground for a more stable, comfortable ride. The factory sway bar is not removed.

Kelderman uses quality Firestone air bags and provides everything required including all hardware, and easy to read instructions. A tech department is available Monday through Friday (7-4 CST) to assist with installation and other inquiries.



  • Numerous height control options available

·  Unique Kelderman 4-bag design allows truck to ride 2 inches below stock height

·  4-link featuring parallel trailing arms

·  Minimal pinion angle movement

·  Utilizes factory sway bar

·  All components come black powder-coated standard