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Home >> Hummer >> 2009 >> H3 Base, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brake System >> Specifications >> Disc Brake Component Specifications
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Disc Brake Component Specifications

Application Specification
Metric English
Front Brakes
  • Rotor Discard Thickness *
26.5 mm 1.04 in
  • Rotor Minimum Allowable Thickness After Refinish
27.0 mm 1.06 in
  • Rotor Thickness (new)
28.0 mm 1.10 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
Rear Brakes
  • Rotor Discard Thickness *
10.5 mm 0.413 in
  • Rotor Minimum Allowable Thickness After Refinish
11.0 mm 0.433 in
  • Rotor Thickness (new)
12.0 mm 0.472 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
* 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 specifications.