REMOVAL & INSTALLATION
See Figure 1
- Raise and safely support the vehicle.
- Remove the tire and wheel assembly.
- Unfasten the caliper mounting bolts, then carefully remove the caliper (along with the brake pads) from the rotor. Do not disconnect the brake line; instead, wire the caliper out of the way with the line still connected.
- Remove the rotor by simply pulling it off of the hub and bearing assembly.
- The installation is the reverse of the removal procedure.
Check the disc brake rotor for scoring, cracks or other damage. Rotor run-out should be measured while the rotor is installed, while rotor thickness/thickness variation may be checked with the rotor installed or removed. Use a dial gauge to check rotor run-out. Check the rotor thickness to make sure it is greater than minimum thickness and check for thickness variations using a caliper micrometer.
See Figure 2
- Measure the thickness at four or more points on the rotor. Make all measure measurements at the same distance in from the edge of the rotor. Use a micrometer calibrated in ten-thousandths of an inch.
- A rotor that varies in thickness by more than 0.0005 in. (0.013mm) can cause pedal pulsation and/or front end vibration during brake applications. A rotor that does not meet these specifications should be resurfaced to specifications or replaced.
See Figure 3
- Remove the wheel and tire assembly.
- Fasten the lug nuts to retain the rotor.
- Secure a dial indicator to the steering knuckle so the indicator button contacts the rotor at about 0.5 in. (13mm) from the outer edge of the rotor.
- Set the dial indicator to zero.
- Turn the wheel one complete revolution and observe the total indicated run-out.
- If the run-out exceeds 0.0031 in. (0.08mm), resurface or replace the rotor.