JK rear disc brake kit includes rotors with the 6 on 5 1/2" wheel bolt pattern with the center hole bored to clear the full floating hubs, 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!