Bolt on mustang ii

[northern 49]

I didn't have anything that extreme. As I said I had to use a big punch to line things up a bit and now that I think of it I did use a couple of big C-clamps over the side of the frame rail and under the crossmember to close any gaps between the frame and boxing plates and that helped line things up too. Maybe do some cross measurements on your frame and check the level of all your cross members to make sure the frame isn't twisted.