GM Camaro 1967-1981 Repair Guide

Brake Disc

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INSPECTION



See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: Use a dial indicator to check the front rotors for excessive run-out-if the reading is more than a total of 0.004 in., it should be cut or replaced

  1. Tighten the spindle nut to remove all wheel bearing play.
  2.  
  3. Install a dial indicator on the caliper so that its feeler will contact the disc about 1 in. below its outer edge.
  4.  
  5. Turn the disc and observe the run-out reading. If the reading exceeds 0.002 in. (.004 in. total reading), the disc should be replaced.
  6.  
  7. Measure the thickness of the rotor at 5 points around the circumference. Tolerance is .0005 in.
  8.  
  9. Minimum thickness dimensions are cast into the caliper for reference.
  10.  

REMOVAL & INSTALLATION



See Figure 2

Click image to see an enlarged view

Fig. Fig. 2: Exploded view of the front rotor mounting

  1. Raise the car, support it with jackstands, and remove the wheel and tire assembly.
  2.  
  3. Remove the brake caliper, as previously outlined.
  4.  
  5. Drill out the five rivets holding the disc to the hub.
  6.  
  7. Remove the disc.
  8.  
  9. Remove the rivet stubs from the hub.
  10.  
  11. Install the disc on the hub, aligning the lug bolts with the holes in the disc.
  12.  
  13. Install the brake caliper and shoes as previously outlined.
  14.  
  15. Bleed the brakes, install the wheel, and lower the car. Adjust front wheel bearings as described in General Information And Maintenance .
  16.  

 
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