GM Camaro/Firebird 1993-1998 Repair Guide

Brake Disc (Rotor)

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REMOVAL & INSTALLATION



See Figures 1, 2 and 3


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 support the car. Remove the tire and wheel assembly.
  2.  
  3. Unfasten the two caliper retaining bolts, then discard the bolts.
  4.  
  5. Remove the caliper mounting plate with the assembled caliper from the caliper mounting plate on the axle and hang it from the suspension using a suitable piece of wire.
  6.  



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Fig. Fig. 1: Remove the caliper and suspend from the body with a piece of wire. Do not disconnect the brake line

  1. Remove the brake rotor from the spindle.
  2.  



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Fig. Fig. 2: Pull the rear brake rotor straight off the wheel lug studs



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Fig. Fig. 3: Exploded view of the brake rotor mounting

To install:
  1. Position the rotor onto the spindle.
  2.  
  3. Install the caliper mounting plate with the assembled caliper to the caliper mounting plate on the axle.
  4.  
  5. Install two new caliper bolts and tighten them to 74 ft. lbs. (100 Nm). Check the torque on both rear brake caliper bolt/screws immediately.
  6.  
  7. Install the tire and wheel assembly, then carefully lower the vehicle.
  8.  

INSPECTION



See Figure 4

  1. Raise and support the car. Remove the wheel. Replace wheel nuts to hold rotor in place.
  2.  
  3. Check the rotor surface for wear, scoring, grooves or rust pitting. Rotor damage can be corrected by refacing, consult your local garage or machine shop. If the damage exceeds the minimum thickness, which is stamped on the rotor, replace the rotor.
  4.  
  5. Using a dial indicator, check the rotor parallelism at several points around the circumference. The difference must not vary more than 0.0006 in. (0.015mm). Make all measurements at the same distance in from the edge of the rotor.
  6.  



Click image to see an enlarged view

Fig. Fig. 4: Use a dial indicator to check the rotor lateral runout

  1. Using the same dial indicator, measure the rotor runout. The runout should not exceed 0.004 in. (0.10mm).
  2.  
  3. If any of these conditions are not met, reface or replace the rotor.
  4.  

 
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