2008 Hummer H3 Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Disc Brake Component Specifications

WARNING: This page is about a different car, the 2008 Chevrolet Malibu Classic. However, it is still accessible from the selected car via links, so may be relevant.
Application Specification
Metric English
Caliper Bore Diameter - Front 60.0 mm 2.36 in
Caliper Bore Diameter - Rear 38.0 mm 1.50 in
Front Brakes J67
  • Rotor Diameter
 276.0 mm 10.866 in
  • Rotor Discard Thickness*
 22.8 mm 0.898 in
  • Rotor Maximum Allowable Assembled Lateral Runout
 0.05 mm 0.002 in
  • Rotor Maximum Allowable Scoring
 1.50 mm 0.059 in
  • Rotor Minimum Allowable Thickness After Refinish
 23.0 mm 0.906 in
  • Rotor Maximum Allowable Thickness Variation
 0.025 mm 0.001 in
  • Rotor Thickness New
 26.0 mm 1.023 in
Front Brakes JL9
  • Rotor Diameter
 296.0 mm 11.653 in
  • Rotor Discard Thickness*
 22.8 mm 0.898 in
  • Rotor Maximum Allowable Assembled Lateral Runout
 0.05 mm 0.002 in
  • Rotor Maximum Allowable Scoring
 1.50 mm 0.059 in
  • Rotor Minimum Allowable Thickness After Refinish
 23.0 mm 0.906 in
  • Rotor Maximum Allowable Thickness Variation
 0.025 mm 0.001 in
  • Rotor Thickness New
 26.0 mm 1.023 in
Rear Brakes JL9/J67
  • Rotor Diameter
 270.0 mm 10.630 in
  • Rotor Discard Thickness*
 11.8 mm 0.465 in
  • Rotor Maximum Allowable Assembled Lateral Runout
 0.05 mm 0.002 in
  • Rotor Maximum Allowable Scoring
 1.50 mm 0.059 in
  • Rotor Minimum Allowable Thickness After Refinish
 12.0 mm 0.472 in
  • Rotor Maximum Allowable Thickness Variation
 0.025 mm 0.001 in
  • Rotor Thickness New
 14.0 mm 0.551 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 specification.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.