Drum Brake System: Adjustments

Drum Brake Adjustment

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





1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the rear wheels and tires.
3. Relieve cable tension from the park brake system at the equalizer. There should be no tension on the park brake cables, so that the brake shoes are positioned only by the adjuster strut.





4. Remove the rear drums.
5. Set the J21177-A so that the J21177-A contacts the inside diameter of the drum at the widest point.





6. Position the J21177-A over the shoes at the widest point.
7. Turn the adjuster strut until the shoes just contact the J21177-A.
8. Repeat steps two through five for the other rear brake assembly.
9. Install the rear drums.
10. Install the rear wheels and tires.
11. Adjust the park brake cable system.
12. Lower the vehicle.