Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Parking Brake System: Adjustments



Park Brake Adjustment

Tools Required

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

Caution: Refer to Brake Dust Caution.

Important: The park brake shoes must be adjusted before the park brake pedal is adjusted.




1. Set the J 21177-A so that it contacts the inside diameter of the rotor.




2. Position the J 21177-A over the shoe and the lining at the widest point.
3. Turn the adjuster nut until the lining just contacts the J 21177-A.
4. Repeat steps 1-3 for the opposite side.
5. The clearance between the park brake shoe and the rotor is 0.6604 mm (0.026 in).