Complete JK rear disc brake kit includes the backing plates with internal drum e-brake installed, rotors with the stock JK 5 on 5" wheel bolt pattern, calipers with pads, and all hardware. This kit may be used on a stock JK, on a Currie or F9 JK rearend, or any other Currie rearend that is equipped with the CE-95011JK JK style housing ends. This makes a great brake upgrade for any large tire off road vehicle!