Brake Discs

WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

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 necessary to install new brake discs to address brake noise concerns.

Remove the brake disc. For additional information, refer to FRONT DISC BRAKE for front disc brakes or REAR DISC BRAKE for 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 the FRONT DISC BRAKE for front disc brakes or REAR DISC BRAKE for rear disc brakes.
- Install new brake discs if cracked. For additional information, refer to the FRONT DISC BRAKE for front disc brakes or REAR DISC BRAKE for 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, the thickness of the discs must be greater than the minimum thickness to machine specification. For additional information, refer to FRONT DISC BRAKE for front disc brakes or REAR DISC BRAKE for rear disc brakes.