I used a set of drilled and slotted brakes from a crown vic cop car I found in the local junkyard. I welded the backing plate holes, and had new holes cut. I had to open the center of the rotors up, and make minor adjustments to the backing plates. I also made the crown vic emergency brake lines work with the jeep mount. You will need adapters to fit the brake lines. It was more work than I had figured on, but it wasn't difficult, and after pulling the o-ring from the proportioning valve I can lock up a set of 35's.