Air Lift LoadLifter 5000 for Half Ton VehiclesAir Lift adjustable air helper springs level your load, and give your Half Ton truck a safer, more comfortable ride. Air springs are easy to install between your axle and the vehicle frame. Just add air when towing or hauling a heavy load, and reduce air pressure when unloaded, they are fully adjustable for a great ride. Air Lift air springs eliminate sag, sway, and bottoming out. They are made with rugged, durable components for long, reliable