his deluxe suspension conversion kit comes with a front complete conversion assembly and a rear suspension conversion kit with rear mounts. This deluxe kit comes with everything you need to convert your air suspension. Replacing your cadillac eldorado electronic shocks with these reliable non-electronic shocks (that are backed by a *lifetime warranty*) is a simple installation procedure. Cadillac air suspension fails because of rubber dry rotting, and then leaking. Your air suspension compressor will eventually fail because of this. Cadillac shocks in the front fail because of the seals in the cadillac shock wearing down over time. They eventually leak, losing its dampening ability needed for a safe and smooth ride. Cadillac suspension when replaced with our cadillac air ride conversion kit still gives you the smooth ride you expect in your cadillac eldorado suspension without having the check suspension warning light. This kit includes 4 shocks . The 1991-1992 requires a relay.