gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Identifying Brake Types|Page 4931 > < Identifying Brake Types
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Fig. 1  Exploded View Of Drum Brake Assembly.

Duo Servo

On the Duo Servo brake system the adjustment screw assembly is located at the bottom of the brake shoes. The adjustment slot is located near the
bottom of the backing plate.

Identifying Brake Types|Page 4931 > < Identifying Brake Types