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Home >> Chevrolet >> 2004 >> Impala LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 1128 (Disc Brake System) >> Specifications >> Disc Brake Component Specifications

Disc Brake Component Specifications

WARNING: This page is about a different car, the 2012 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Disc Brake Component Specifications

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
  • 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
  • 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.