[Chris1529]

I think you would have to trim the wheel openings. I know they would'nt fit on my 84, so if you have an LX Mustang, I think the openings are the same. If you have a GT, the ground effects probably make them even smaller.

1/4" is cutting it pretty close. You would have to check the tire for clearance around the entire tire plus account for any shifting of the body. In my opinion, 1/4" is probably a little close.