Disc Thickness and Parallelism

Rear Brake Disc Thickness and Parallelism Inspection
1. Loosen the rear wheel lug nuts slightly, then raise the car and support on safety stands. Remove the rear wheels.

2. Remove the brake pads. Service and Repair





3. Using a micrometer, measure disc thickness at eight points, approximately 45° apart and 10 mm (0.4 in) in from the outer edge of the disc.

Brake Disc Thickness:
Standard: 10.0 mm (0.39 in)

Brake Disc Parallelism: 0.015 mm (0.0006 in) max.

NOTE: This is the maximum allowable difference between any thickness measurements.

4. If the disc is beyond the service limits, for parallelism, refinish the rotor.

Max. Refinishing Limit: 8.0 mm (0.31 in)