They have a hub and bearing assembly. remove the wheel.THen the brake caliper, caliper mount and rotor. remove the axle nut. u may have to seperate the lower balljoin to gain access to the bolts behind the spindle. Unbolt remove and reverse the disassembly .
Don't fall for this repair trap well known by Ford. First it's wheel bearings. then its throw out bearing,main bearings and on and on. Your car has contracted a bearing virus from which there is no repair. You must shoot your car.
Bearings on the car are sealed, so it is very easy. Remove brakes, remove axle nut, push axle through hub, and remove hub bearing. Reinstall in the reverse order. Toque tire to proper toque specification.