Discard Thickness
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1997 Ford Pickup, 1997 Ford F-Super Duty, 1997 Ford Cab & Chassis, 1996 Ford Pickup, and 1996 Ford F-Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
Using micrometer, measure thickness of rotor. Disc brake rotors have a minimum wear thickness. Minimum wear thickness is not refinishing dimension. See DISC BRAKE SPECIFICATIONS .
CAUTION:
Never refinish a rotor down to minimum wear or discard thickness.