REMOVAL & INSTALLATION
- Loosen the rear wheel lugs slightly, then raise and safely support the rear of the vehicle. Remove the rear wheel(s) and temporarily attach the rotor disc with two of the wheel nuts.
- Unbolt and remove the torque plate from the steering knuckle.
- Remove the two wheel nuts and pull the disc from the axle hub. If the disc is difficult to remove, return the parking brake shoe adjuster until the disc spins freely, and remove the disc.
- Before installing the disc, lightly polish the disc surfaces with a fine grit emery cloth.
- Position the new rotor disc onto the axle hub so that the hole on the rear axle shaft is aligned with the service hole on the disc. Reinstall the two wheel nuts temporarily.
- Install the torque plate onto the steering knuckle. Torque the plate bolts to 34 ft. lbs. (47 Nm).
- Reinstall the rear wheels and lower the vehicle. Test drive the vehicle.
Examine the disc. If it is worn, warped or scored, it must be machined or replaced. Check the thickness of the disc against the specifications given in the Brake Specifications Chart. If it is outside specifications, replace it. Use a micrometer to measure the thickness.
The disc run-out should be measured before the disc is removed and again, after the disc is installed. Use a dial indicator mounted on a magnet type stand (attached to the shock absorber shaft) to determine runout. Position the dial so the stylus is 10mm from the outer edge of the rotor disc. The maximum allowable runout 0.0059 in. (0.15mm). If the runout exceeds the specification, replace the disc.