Kelderman's 4-link air ride is now readily available for most late model ' ton and 1 ton Dodge, Chevy and Ford pickups. This quality engineered 4-link suspension system, replaces the factory leaf spring to add stability and comfort; especially while towing valuable cargo. The perfect addition for trucks used to tow valuable cargo, Kelderman's 4-link retails for $3499 and includes automatic self leveling kit, Viair air compressor, Firestone air bags and all necessary components.