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Home >> Chevrolet >> 2000 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 485 (Disc Brakes & Drum Brakes) >> Adjustments & Inspections >> Rear Drum Brake >> Drum Brake Adjustment

Drum Brake Adjustment

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle.
  2. Remove the rear wheels and tires.
  3. Relieve cable tension from the park brake system at the equalizer. There should be no tension on the park brake cables, so that the brake shoes are positioned only by the adjuster strut.
  4. Remove the rear drums. See BRAKE DRUM  under REMOVAL & INSTALLATION.
  5. Set the Drum-to-Brake Shoe Clearance Gage (J-21177-A) so that it contacts the inside diameter of the drum at the widest point.
  6. Position the drum-to-brake shoe clearance gage over the shoes at the widest point.
  7. Turn the adjuster nut until the shoes just contact the clearance gage.
  8. Repeat steps  2- 5 for the other rear brake assembly.
  9. Install the rear drums. See BRAKE DRUM  under REMOVAL & INSTALLATION.
  10. Install the rear wheels and tires.
  11. Adjust the park brake cable. See appropriate procedure under PARK BRAKE .
  12. Lower the vehicle.
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