GM Camaro/Firebird 1993-1998 Repair Guide

Brake Drums

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REMOVAL & INSTALLATION



See Figure 1


CAUTION
Older brake pads or 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 safely support the vehicle.
  2.  
  3. Remove the wheel and tire assembly. Matchmark the position of the brake drum to the axle flange.
  4.  
  5. Pull the brake drum off the wheel studs. It may be necessary to gently tap the rear edges 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, as follows:
    1. Make sure the parking brake is fully released.
    2.  
    3. Disconnect the parking brake cable from the equalizer.
    4.  
    5. Remove the adjusting hole cover or knock out the access hole in the backing plate and use a screwdriver and brake adjusting tool to back off the adjusting screw to retract the linings away from the drum.
    6.  

  8.  



Click image to see an enlarged view

Fig. Fig. 1: If the drum won't come off the studs, you will need to back off the adjusting screw


WARNING
Do not pry against the splash shield surrounding the backing plate or you will damage the shield.

    1. Use a rubber mallet to gently tap on the outer rim of the drum and/or around the inner drum diameter by the axle flange while pulling outward on the drum. Be careful not to deform the drum by tapping too hard with the mallet.
    2.  


Be careful not to drop the brake drum during removal and installation. Out-of-round can be caused by even a short fall, causing brake pulsations.

To install:
  1. If the adjusting hole cover was removed, install a replacement cover before reinstalling drum.
  2.  
  3. Install the drum on the studs in the same position on the hub as removed, using the matchmarks made during removal.
  4.  
  5. If the parking brake cable was disconnected, reattach it to the equalizer.
  6.  
  7. Install the wheel and tire assembly.
  8.  
  9. Carefully lower the vehicle. Cycle the parking brake lever three times.
  10.  

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 in. (1.524mm).
  4.  

 
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