Loosen the wheel lug nuts, raise the vehicle, and support it securely on jackstands. Remove the wheel and install the lug nuts to hold the disc in place, releasing the parking brake if working on the rear brake disc. Remove the
Brake Caliper without disconnecting the brake hose, suspending it out of the way with a piece of wire, and then remove the caliper bracket bolts. Visually inspect the disc surface for score marks and damage; light scratches are normal, but deep scoring over 0.039-inch requires disc removal and refinishing. To check disc runout, place a dial indicator about 1/2-inch from the outer edge of the disc, set it to zero, and turn the disc, ensuring the reading does not exceed the allowable runout limit. Resurfacing is recommended whenever pads are replaced, and if not resurfaced, remove the glaze with sandpaper or emery cloth. Ensure the disc is not machined below the specified minimum allowable refinish thickness, which can be checked with a micrometer. Remove the lug nuts holding the disc, take out the Phillips-head screws, and slide the disc off the hub, addressing any interference from the
Parking Brake Shoes if necessary. Place the new disc over the threaded studs, install the caliper and tighten the bolts, adjusting the parking brake shoes if installing a rear disc. Finally, install the wheel and lug nuts, lower the vehicle, and tighten the lug nuts to the specified torque.