Rear Disc Brakes
1. Loosen parking brake cable from interior end of cable and disconnect parking brake cable from rear brake caliper assembly.2. Remove lower lockpin. Lift caliper assembly and support with suitable wire. Do not smear grease on lockpin and ensure it is free of dirt.
Fig. 6 Exploded View Of Rear Disc Brake Caliper:
3. Remove outer shim, pad assembly, pad clip and inner shims, Fig. 6.
Fig. 2 Hub And Brake Drag Torque Measurement:
4. Measure rotating torque of hub with brake pads removed using a suitable spring scale, Fig. 2. On models with Viscous Coupling Unit (VCU) equipped Limited Slip Differential (LSD), disengage the driveshaft and companion flange.
5. Clean piston surface and push into caliper using suitable tool. Ensure piston boot does not become wedged.
6. Attach pad clip and pads to caliper support.
7. Check brake drag 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 corrosion, worn or damaged parts.