Chevrolet Full-size Cars 1968-1978 Repair Guide

Brake Drum

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REMOVAL & INSTALLATION




CAUTION
Brake shoes may contain asbestos, which has been determined to be a cancer causing agent. Never clean the brake surfaces with compressed air! Avoid inhaling any dust from any brake surface! When cleaning brake surfaces, use a commercially available brake cleaning fluid.

  1. Raise and support the vehicle on safety stands.
  2.  
  3. Remove the tire and wheel assembly.
  4.  
  5. Pull the brake drum off. It may be necessary to gently tap the rear edge of the drum to start it off the studs.
  6.  
  7. If extreme resistance to removal is encountered, it will be necessary to retract the adjusting screw. Knock out the access hole in the brake drum and turn the adjusting to retract the linings from the drum.
  8.  
  9. Install a replacement hole cover before reinstalling drum.
  10.  
  11. Install the drums in the same position on the hub as removed.
  12.  

INSPECTION



  1. Check the drums for any cracks, scores, grooves, or an out-of-round condition. Replace if cracked. Slight scores can be removed with fine emery cloth while extensive scoring requires turning the drum on a lathe.
  2.  
  3. Never have a drum turned more than 0.060 inch.
  4.  

 
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