Tools Required

J 21177-A Drum to Brake Shoe Clearance Gauge

1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Mark the relationship of the wheel to the wheel studs in the bearing flange.
3. Remove the rear wheels and tires. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
4. Mark the relationship of the drum to the wheel studs in the bearing flange.
5. Remove the brake drum. Refer to Brake Drum Replacement .
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 in) 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: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

11. Torque the wheel nuts.

Tighten
Tighten the wheel nuts to 140 N·m (100 lb in).

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