Park Brake Shoe Adjustment

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WARNING:

Refer to Brake Dust Warning .

NOTE:

The park brake shoes must be adjusted before the park brake cable tension is adjusted.

Fig 1: Measuring Inside Of Rotor

Courtesy of GENERAL MOTORS CORP.

Set the J-21177-A Drum-to-Brake Shoe Clearance Gauge so that it contacts the inside diameter of the rotor.

Fig 2: Adjusting Parking Brake Shoes Using Special Tool

Courtesy of GENERAL MOTORS CORP.

Position the J-21177-A Gauge over the shoe and the lining at the widest point.
Turn the adjuster nut until the lining just contacts the J-21177-A Gauge.
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).