Now you are ready to install the caliper. It slips over the studs on the caliper bracket over the rotor. Measure the distance between the rotor and the inside surface of the caliper to determine that it is centered. Use the shims supplied by Wilwood until the measurements are as close as possible. At this point, you can slip the pads in. To help keep them from making noise, apply "disc brake quiet" to the areas where the caliper contacts the pad, both on the backing and the sides of the pad.