Brake Discs
CAUTION:
Using an impact tool without a torque socket will lead to unevenly tightened lug nuts. This causes brake disc on-vehicle lateral runout and brake roughness.
NOTE:
It is generally not required to install new brake discs to address noise issues.
- Remove the brake disc. For additional information, refer to DISC for front disc brakes or rear disc brakes.
- Inspect the brake discs and measure the brake disc thickness in a minimum of 4 places around the circumference of the brake disc. Record the measurements.
- Install new brake discs if any thickness measurement is less than the minimum specification. For additional information, refer to DISC for front disc brakes, or rear disc brakes.
- Install new brake discs if cracked. For additional information, refer to DISC for front disc brakes or rear disc brakes.
- Machine the brake discs if the diagnosis has revealed vibration in the steering wheel, seat, or pedal while braking. Heavily scored brake discs, similar to that caused by pads worn down to the backing plate, should also be machined. In order to machine, discs must be above the minimum thickness to machine specification. For additional information, refer to SPECIFICATIONS and BRAKE DISC MACHINING .