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Home >> Cadillac >> 2009 >> STS AWD V8-4.6L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Brakes and Traction Control >> System Specifications >> J56
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J56

Front Brake Rotors

Rotor Minimum Thickness After Refinishing 31.0 mm (1.220 in)
Rotor Discard Thickness* 30.00 mm (1.181 in)
Rotor Maximum Allowable Thickness Variation 0.025 mm (0.001 in)
Rotor Maximum Allowable Assembled Lateral Runout 0.06 mm (0.002 in)

Rear Brake Rotors

Rotor Minimum Thickness After Refinishing 27.00 mm (1.062 in)
Rotor Discard Thickness* 26.00 mm (1.023 in)
Rotor Maximum Allowable Thickness Variation 0.025 mm (0.001 in)
Rotor Maximum Allowable Assembled Lateral Runout 0.06 mm (0.002 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.