1988 lx 5 lug ?

what speedytang said. if you have hubs with a removable dust cap and serviceable wheelbearings, then you have mark VII rotors and can still order front pads for a mustang unless they put mark VII calipers on it too. then you would buy pads for a mark VII. what i would do is bring the pad that connects to the caliper piston into the parts store and compare it to a mustang pad. if the claw is the same size then you are alright, if it is bigger then you need pads from the VII. if you still have drums in the back, you can still order shoes as mustang shoes, but the drums are for a ranger with 9" drums. if you have rear discs then they are probably for a 94+ GT. just to make sure bring in the old pads and compare them.