Disc Brake Specifications

DISC BRAKE SPECIFICATIONS

Application

In. (mm)

Front Brakes

Disc Diameter

JA9 Front Discs

11.93 (303.0)

JB9 Front Discs

10.945 (278.0)

Maximum Lateral Runout

0.003 (0.080)

Maximum Thickness Variation

0.0005 (0.013)

Maximum Tolerable Scoring Depth

0.059 (1.5)

Original Rotor Thickness

1.27 (32.2)

Minimum Rotor Thickness After Refinish

1.22 (31.08)

Rotor Discard Thickness

1.21 (30.7)

Minimum Machined Depth

0.039 (1.0)

Minimum Brake Pad Material Thickness ⁽¹⁾

.030 (0.76)

Rear Brakes

Disc Diameter

10.945 (278.0)

Maximum Lateral Runout

0.003 (0.08)

Maximum Thickness Variation

0.0005 (0.013)

Maximum Tolerable Scoring Depth

0.059 (1.5)

Original Rotor Thickness

0.43 (11.0)

Minimum Rotor Thickness After Refinish

0.39 (10.0)

Rotor Discard Thickness

0.35 (9.0)

Minimum Machined Depth

0.06 (1.6)

Minimum Brake Pad Material Thickness ⁽¹⁾

.030 (0.76)

⁽¹⁾	Minimum brake pad thickness is measured from pad backing plate. For riveted pads, replace the pads when worn to within 0.030 in. (0.76mm) of any rivet head.