As Ford built them, Mustangs were 4 lug from '74 to '93, except for the SVO. But there are aftermarket kits based on the '74 to '78 (Pinto) front end available in probably any pattern one could want.
Whatever keeps the cars on the road. I'd rather see a ratty Mopar driving to work with Toyota parts in it, than a $60k concourse "quality" trailer trash any day of the week.
