Warning: Refer to Brake Dust Warning in the Preface section.
Danger: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the
opposite end from which the components are being removed and strap the vehicle to the hoist.
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle in General Information.
- Remove the wheels. Refer to
Tire and Wheel Removal and Installation in Tires and Wheels.
- Clean the friction surfaces of the brake disc with denatured alcohol,
or an equivalent approved brake cleaner.
- Using a micrometer calibrated in thousandths-of-a-millimeter,
or ten-thousandths-of-an-inch, measure and record the thickness of the brake disc
at 4 points, evenly spaced around the brake disc.
- Make sure that the measurements are only taken within the friction surfaces
and that the micrometer is positioned the same distance from the outer edge of the
brake disc, about 13 mm (½ in), for each measurement.
- Compare the lowest thickness measurement recorded to the following specification:
Specification - (Front Base and GT)
| • | Brake disc minimum allowable thickness after refinishing: 28.75 mm
(1.13 in). |
| • | Brake disc discard thickness: 28 mm (1.1 in) |
Specification - Front (GT)
| • | Brake disc minimum allowable thickness after refinishing: 28.75 mm
(1.13 in). |
| • | Brake disc discard thickness: 28 mm (1.1 in) |
Specification - Front (GXP)
| • | Brake disc minimum allowable thickness after refinishing: 30.75 mm
(1.211 in). |
| • | Brake disc discard thickness: 30 mm (1.18 in) |
Specification - Rear
| • | Brake disc minimum allowable thickness after refinishing: 20.75 mm
(0.817 in) |
| • | Brake disc discard thickness: 20 mm (0.80 in) |
Specification - Rear (GT and GXP)
| • | Brake disc minimum allowable thickness after refinishing: 20.75 mm
(0.817 in) |
| • | Brake disc discard thickness: 20 mm (0.80 in) |
- If the lowest thickness measurement of the brake disc is above the minimum
allowable thickness after refinishing specification, the brake disc may be able to
be refinished, depending upon surface and wear conditions which may be present.
- If the lowest thickness measurement of the brake disc is at or below the
minimum allowable thickness after refinishing specification, the brake disc may not
be refinished.
- If the lowest thickness measurement of the brake disc is at or below the
discard thickness specification, the brake disc requires replacement.
