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Disc Brakes Service Specifications

DISC BRAKES SERVICE SPECIFICATIONS

Application

In. (mm)

Front Brakes (JC3, JC4 & JH2) ⁽¹⁾

Rotor Discard Thickness

1.083 (27.50)

Rotor Minimum Allowable Thickness After Refinish

1.102 (28.00)

Rotor Thickness (NEW)

1.142 (29.00)

Rotor Maximum Allowable Lateral Runout

0.005 (0.13)

Rotor Maximum Allowable Scoring

0.059 (1.50)

Rotor Maximum Allowable Thickness Variation

0.001 (0.025)

Front Brakes (JH6) ⁽¹⁾

Rotor Discard Thickness

1.437 (36.50)

Rotor Minimum Allowable Thickness After Refinish

1.457 (37.00)

Rotor Thickness (NEW)

1.496 (38.00)

Rotor Maximum Allowable Lateral Runout

0.005 (0.13)

Rotor Maximum Allowable Scoring

0.059 (1.50)

Rotor Maximum Allowable Thickness Variation

0.001 (0.025)

Rear Brakes (JC4 & JH2) ⁽¹⁾

Rotor Discard Thickness

1.122 (28.50)

Rotor Minimum Allowable Thickness After Refinish

1.142 (29.00)

Rotor Thickness (NEW)

1.181 (30.00)

Rotor Maximum Allowable Lateral Runout

0.005 (0.13)

Rotor Maximum Allowable Scoring

0.059 (1.50)

Rotor Maximum Allowable Thickness Variation

0.001 (0.025)

Rear Brakes (JH6) ⁽¹⁾

Rotor Discard Thickness

1.083 (27.50)

Rotor Minimum Allowable Thickness After Refinish

1.102 (28.00)

Rotor Thickness (NEW)

1.142 (29.00)

Rotor Maximum Allowable Lateral Runout

0.005 (0.13)

Rotor Maximum Allowable Scoring

0.059 (1.50)

Rotor Maximum Allowable Thickness Variation

0.001 (0.025)

⁽¹⁾	All brake rotors have a discard dimension cast into them. Replace any rotor that does not meet this specification. After refinishing rotor, replace any rotor that does not meet minimum thickness specifications.