Medium Duty GM
2003-2009 GM 4500/5500 Cab & Chassis 2-Stage Front Air Suspension
With a Kelderman 2-Stage Front Air Suspension, your pickup truck can ride better and be more versatile. By replacing the factory coils/leaf springs and shocks with the Kelderman 2-Stage system, the result is a smoother ride, adjustable ride height, and adjustable shocks. You are able to set the ride height with the air bags and adjust the ride quality with the shocks.Optional air controls can allow you to control the air pressure of the air bags from within the cab and on the go....


