i lost the right front wheel on my 85 as i was pulling into my driveway after having the wheels installed the prior week.i pointed fingers until i did a little investigating,turns out the right front wheel has 7/16 studs not 12s like the other three.checked the old lugnuts the wheel shop gave me back and sure enough six 7/16th lugs and the rest were 12s.no accounting for previous owners thinking.