Drum Brake System: Adjustments

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

1. Raise and suitably support the vehicle.
2. Mark the relationship of the wheel to the wheel studs in the bearing flange.
3. Remove the rear wheels and tires.
4. Mark the relationship of the drum to the wheel studs in the bearing flange.
5. Remove the brake drum.
6. Ensure the lever stops on both park brake levers are against the edges of the shoe webs on the park brake shoes. If the park brake cable is holding the stops off of the edge of the shoe web, loosen the park brake cable adjustment.
7. Measure the inside diameter (ID) of the drum using the J 21177-A.
8. Turning the star wheel on the adjusting screw assembly, adjust the shoe and lining diameter to 1.27 mm (0.050 inch) less than the drum ID.
9. Install the drum and wheel, aligning the marks that were made during the removal.
10. Repeat steps 2 through 9 in order to adjust the other rear brake position.

NOTICE: Refer to Fastener Notice in Service Precautions.

11. Torque the wheel nuts.
^ Tighten the wheel nuts to 140 Nm (100 inch lbs.).

12. Lower the vehicle.
13. Apply and release the service brake pedal 30 to 35 time with normal pedal force. Pause about one second between pedal applications.