Parking Brake System: Adjustments

Park Brake Adjustment

Tools Required

J 21177-A Drum-to-Brake Shoe Clearance Gage

Caution: Refer to Brake Dust Caution.

Caution: Refer to Brake Fluid Irritant Caution.

Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice.

1. Apply and fully release the parking brake 6 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 Lifting and Jacking the Vehicle.
4. Remove the rear tire and wheel assemblies.




5. Remove both rear caliper brackets.
6. Relieve tension on the park brake system at the park brake equalizer.
7. Remove both rear brake rotors.




8. Set the J 21177-A inside of the park brake drum (1) 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 (1) at the widest point.
10. Turn the adjuster on the actuator until the park brake shoe just contacts the J 21177-A.
11. Repeat steps 8-10 for the opposite side.
12. Install both rear brake rotors.
13. Install both rear caliper brackets.
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.
17. Apply the parking brake, then inspect for rotation of the rear wheels. If the rear wheels rotate during this inspection, then readjust the parking brake shoes.
18. Release the parking brake. Verify that the wheels rotate freely.
19. Lower the vehicle.