GM Service Manual Online
For 1990-2009 cars only

Application

Specification

Metric

English

Front Brakes

  • Brake Rotor Diameter

296.00 mm

11.653 in

  • Brake Rotor Discard Thickness*

23.0 mm

0.906 in

  • Brake Rotor Maximum Allowable Assembled Lateral Runout

0.06 mm

0.002 in

  • Brake Rotor Maximum Allowable Scoring

1.50 mm

0.059 in

  • Brake Rotor Maximum Allowable Thickness Variation

0.025 mm

0.001 in

  • Brake Rotor Minimum Allowable Thickness After Refinish

23.5 mm

0.925 in

  • Brake Rotor Thickness - New

26.0 mm

1.023 in

Rear Brakes

  • Brake Rotor Diameter

278.0 mm

10.945 in

  • Brake Rotor Discard Thickness*

10.0 mm

0.394 in

  • Brake Rotor Maximum Allowable Assembled Lateral Runout

0.06 mm

0.002 in

  • Brake Rotor Maximum Allowable Scoring

1.50 mm

0.059 in

  • Brake Rotor Maximum Allowable Thickness Variation

0.025 mm

0.001 in

  • Brake Rotor Minimum Allowable Thickness After Refinish

10.5 mm

0.413 in

  • Brake Rotor Thickness - New

11.8 mm

0.465 in

* All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing the rotor, replace any rotor that does not meet the minimum thickness after refinish specification.