Caution: Refer to Brake Dust Caution in the Preface section.
Park Brake Shoe Adjustment
Tools Required
J 21177-A 
 Drum-to-Brake Shoe Clearance Gage
Important: The park brake shoes must be adjusted before the park brake pedal is adjusted.
- Set the 
J 21177-A 
 so that it contacts the inside diameter
of the rotor (1).
 
- Position the 
J 21177-A 
 over the shoe (1) and the lining
at the widest point.
 
- Turn the adjuster nut until the lining just contacts the 
J 21177-A 
 .
 
- Repeat steps 1-3 for the opposite side.
 
- The clearance between the park brake shoe and the rotor is 0.6604 mm (0.026 in).
 
Park Brake Pedal Adjustment
Important: Before you adjust the park brake, verify that the park brake shoes are adjusted to provide a clearance of 0.6604 mm (0.026 in).
- Verify that the automatic adjuster lock-out pin has been removed.
 
- Fully apply and release the park brake pedal 3 times.