Rear Disc Brakes

1. Raise and support vehicle, then remove wheel.
2. Remove parking brake cable.

Fig. 4 Exploded View Of Disc Brake Assemblies (AD30P & AD35P Calipers):

Fig. 5 Exploded View Of Disc Brake Assembly (MR45S Caliper):

3. Remove lower lockpin, Fig. 4 and 5, and lift caliper body upward, then support caliper with wire. Lockpin is coated with special grease. Use caution not to remove grease and ensure no dirt adheres to pin.
4. Remove outer shim and pad assembly from caliper support.
5. Remove pad clips.

Fig. 9 EPS Diagnosis:

6. Measure hub torque with pad removed to aid in measuring brake drag torque after pad installation, Fig. 9.
7. Press piston into cylinder using a suitable tool. Ensure stopper grooves in rear of piston are in the vertical position.
8. Install pad clips, then the pad and shim as an assembly onto the caliper support. Pins on back side of brake pad must be placed in grooves of piston.
9. Lower caliper body into position, then install lower lockpin tightening to specification.

Fig. 6 Parking Brake Adjustment:

10. With engine running, forcefully depress brake pedal five to six times and ensure the stroke of the parking brake lever is 0.078 inch or less, Fig. 6.
11. Check brake drag torque as follows:
a. Start engine and hold brake pedal down for five seconds.
b. Stop engine and turn brake rotor forward ten turns.
c. Check brake drag using suitable tool.
d. If the difference between brake drag torque and hub torque exceeds 3 ft. lbs., disassemble caliper assembly, clean and check for corroded, worn or damaged parts.
12. Install wheel.