GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

Front Brakes

  • Rotor Discard Thickness

30.3 mm

1.19 in

  • Rotor Maximum Allowable Lateral Runout

0.06 mm

0.002 in

  • Rotor Maximum Allowable Scoring

1.50 mm

0.059 in

  • Rotor Maximum Allowable Thickness Variation

0.025 mm

0.001 in

  • Rotor Minimum Allowable Thickness After Refinish*

30.6 mm

1.205 in

  • Rotor Thickness, New

32 mm

1.26 in

Rear Brakes

  • Rotor Discard Thickness

24.5 mm

0.965 in

  • Rotor Maximum Allowable Lateral Runout

0.06 mm

0.002 in

  • Rotor Maximum Allowable Scoring

1.50 mm

0.059 in

  • Rotor Maximum Allowable Thickness Variation

0.025 mm

0.001 in

  • Rotor Minimum Allowable Thickness After Refinish*

24.9 mm

0.980 in

  • Rotor Thickness, New

26 mm

1.02 in

* Discard a refinished brake rotor if the minimum thickness AFTER REFINISHING is less than the minimum thickness after refinished specification.