How do you replace the front rotors on a 91 Ford F150 4x4?

To replace the front rotors on a 1991 Ford F150 4x4, first, safely lift and support the vehicle, then remove the front wheels. Next, detach the brake caliper by removing the caliper bolts, and hang it securely to avoid straining the brake line. Remove the caliper bracket, then pull off the old rotor; if it's stuck, gently tap it with a hammer. Finally, install the new rotor, reassemble the caliper and bracket, and ensure everything is tightened to the manufacturer's specifications before reinstalling the wheels.