An ascMcLaren forum for 84-86 Capri and 87-90 Mustang based cars modified by Automotive Speciality Corporation, a Division of American Sunroof Corporation. (no affiliation)
Ok here is a cheap fix if you want to go from 4-5 lug quick, cheap, and easy. Just need to match a wheel with the new offset such as a newer '05 Mustang wheel. Hope this helps.