Disc Brake Specifications

FRONT DISC BRAKE SPECIFICATIONS

Application

In. (mm)

Disc Diameter

Heavy Duty

12.8 (325)

Standard

11.8 (300)

Lateral Runout

Heavy Duty

.003 (.08)

Standard

.002 (05)

Parallelism

.0005 (.013)

Original Thickness

Heavy Duty

1.496 (38.00)

Standard

1.267 (32.18)

Minimum Refinished Thickness ⁽¹⁾

Heavy Duty

1.437 (36.50)

Standard

1.224 (31.09)

Discard Thickness ⁽²⁾

Heavy Duty

1.433 (36.40)

Standard

1.209 (30.71)

⁽¹⁾	Surface rotors if scoring, flatness, rotor lateral runout or parallelism are excessive. Light scoring of less than .060" (1.5 mm) does not require rotor surfacing.

⁽²⁾	Discard dimension cast into rotor is for wear and does not apply to minimum refinished thickness.

REAR DISC BRAKE SPECIFICATIONS

Application

In. (mm)

Disc Diameter

Heavy Duty

12.8 (325)

Standard Duty

11.7 (297)

Lateral Runout

Heavy Duty

.0004 (.010)

Standard

.002 (.05)

Parallelism

Heavy Duty

.0004 (.010)

Standard Duty

.0005 (.013)

Original Thickness

Heavy Duty

.787 (19.99)

Standard Duty

.433 (11.00)

Minimum Refinished Thickness ⁽¹⁾

Heavy Duty

.728 (18.49)

Standard Duty

.390 (9.91)

Discard Thickness ⁽²⁾

Heavy Duty

.724 (18.39)

Standard Duty

.374 (9.50)

⁽¹⁾	Surface rotors if scoring, flatness, rotor lateral runout or parallelism are excessive. Light scoring of less than .060" (1.5 mm) does not require rotor surfacing.

⁽²⁾	Discard dimension cast into rotor is for wear and does not apply to minimum refinished dimension.