Parking Brake System: Adjustments

Park Brake Adjustment

^ Tools Required
- J 21177-A Drum-to-Brake Show Clearance Gage





1. Apply and fully release the parking brake six times.
2. Verify that the parking brake pedal releases completely.
^ Turn ON the ignition. Verify that the BRAKE indicator lamp is off.
^ If the BRAKE indicator lamp is on, ensure that the parking brake pedal is in release mode and fully returned to stop. Remove the slack in the front parking brake cable by pulling downward on the cable.
3. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
4. Remove the rear tire and wheel assemblies.
5. Remove both rear caliper brackets. Refer to Brake Caliper Bracket Replacement - Rear.
6. Relieve tension on the park brake system at the park brake equalizer.
7. Remove both rear brake rotors. Refer to Brake Rotor Replacement - Rear.





8. Set the J21177-A inside of the park brake drum at the widest point.
^ Place the contacts on the tool to the widest point of the drum.
^ Tighten the set screw on the tool to ensure the proper measurement when removing the tool from the drum.





9. Position the J 21177-A over the park brake shoe at the widest point.
10. Turn the adjuster on the actuator until the park brake shoe just contacts the J21177-A.
11. Repeat steps eight through ten for the opposite side.
12. Install both rear brake rotors. Refer to Brake Rotor Replacement - Rear.
13. Install both rear caliper brackets. Refer to Brake Caliper Bracket Replacement - Rear.
14. Install the rear tire and wheel assemblies.





15. Adjust the parking brake by turning the nut at the equalizer (2) while spinning both rear wheels. When either rear wheel starts to drag, back off the nut one full turn.
16. Lower the vehicle to curb height.

Important: If the rear wheels rotate during the following test, readjust the parking brake shoes.

17. Apply the parking brake. Inspect the rotation of the rear wheels:
^ The wheels should not rotate forward.
^ The wheels should not drag or rotate backward.
18. Release the parking brake. Verify that the wheels rotate freely.
19. Lower the vehicle.