255-60's will fit on 15x7's on a 70 Swinger

I think they did since I could just barely get a 245/40-18 in there on my 73 Swinger and had to trim the lip and move my springs in 1/2 inch.
On a hard left turn while going through a dip I get a light rub on the inner fender on the passenger side.
If they will keep traction and not break loose really easily I'm gonna run 235 75 15. I just happened to have a new set in my building so I'm gonna try them out if they work I will stick with that size. If not I guess I will be doing a spring relocation