The 2000 model Ford F-150 truck uses brake rotors---often called brake discs---with calipers on all four wheels. A brake rotor needs to be changed if it becomes warped or has been worn down past its minimum required thickness. You should visually inspect the rotors for these conditions any time you change the brake pads or perform other maintenance on the brakes. The replacement process differs slightly depending on whether you're replacing a front or rear rotor, and there's a good chance both rotors on one end will need changing together.
Raise the front or rear end of the truck, depending on which rotor you are changing. Support it on jack stands and remove the wheel. Apply the parking brake if you are raising the front end; block the front wheels if you are raising the rear end.
Disconnect the brake caliper by removing its guide pin bolts with a wrench. Hang the caliper nearby, but don't hang it by its brake hose.
Unbolt and remove the caliper mounting bracket if you are replacing a front brake rotor.
Slip the brake rotor off the hub. If you are replacing a front rotor on a two-wheel-drive model, you need to remove the grease cap, wheel bearing nut, spindle nut, outer bearing retaining washer and outer wheel bearing.
Connect the replacement brake rotor onto the hub. Connect all the above-mentioned fasteners for a front rotor on the two-wheel-drive.
Connect the caliper mounting bracket---front rotors only---and the brake caliper. Tighten the bracket bolts to 136 foot-pounds. Tighten the caliper bolts to 26 foot-pounds on a front caliper or 20 foot-pounds on a rear caliper.
Reconnect the wheel and lower the truck.
