Ok I know that the 7 spoke rims that they used on 93 cobra are 4 lug and that the thunderbird rims that look the same are 5 lug and there lug pattern are further apart than a 5 lug mustang axle would be, so they wouldn't fit even if I did the 5 lug conversion on a mustang.........However can you take the axle's from a TBird and put it in 5.0 or could you change out the whole rear end ....