Express 1500 AWD V8-5.3L (2008)
Parking Brake Actuator: Service and Repair
Parking Brake Actuator Replacement
Removal Procedure
Caution: Refer to Brake Dust Caution .
1. Release the park brake.
2. Disable the park brake cable automatic adjuster. Refer to Parking Brake Cable Adjuster Disabling (See: Parking Brake Cable/Service and
Repair/Procedures/Parking Brake Cable Adjuster Disabling) .
3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
4. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
5. Remove the rear park brake cable from the park brake actuator lever.
6. Remove the park brake cable from the mounting bracket by depressing the locking tabs.
7. Remove the rotor. Refer to Rear Brake Rotor Replacement (W/Dual Wheels) (See: Disc Brake System/Brake Rotor/Disc/Service and
Repair/Removal and Replacement/Rear Brake Rotor Replacement (W/Dual Wheels))Rear Brake Rotor Replacement (Except Dual Wheels) (See:
Disc Brake System/Brake Rotor/Disc/Service and Repair/Removal and Replacement/Rear Brake Rotor Replacement (Except Dual Wheels)) .
8. Remove the axle shaft. Refer to Rear Axle Shaft Replacement (8.6, 9.75 Inch Axle WO/RPO JL4) Rear Axle Shaft Replacement (8.6 Inch Axle
W/RPO JL4) Rear Axle Shaft Replacement (9.75 Inch Axle W/RPO JL4) .
9. Remove the park brake shoe. Refer to Parking Brake Shoe Replacement (1500 Series) (See: Parking Brake Shoe/Service and Repair) .
10. Remove the backing plate bolts.
11. Remove the park brake actuator lever housing from the backing plate.
Installation Procedure
1. Install the park brake actuator lever housing to the backing plate.
2. Perform the following procedure before installing the backing plate bolts.
1. Remove all traces of the original adhesive patch.
2. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
3. Apply Threadlocker GM P/N 12345493 (Canadian P/N 10953488) to the threads of the bolt.
Notice: Refer to Fastener Notice .
3. Install the backing plate bolts.
*
Tighten the single rear wheel backing plate bolts to 135 N.m (100 lb ft).
*
Tighten the dual rear wheel backing plate bolts to 160 N.m plus 30 degrees (118 lb ft plus 30 degrees).
