thats right.. i got MT 28x12.50 ET streets under my 70 cuda. No modifications, just a 1/2 inch spacer to keep from rubbing on the leaf springs. They look awsome on there too.
I use the 1/2 in spacer because they rubbed a little on the rear of the leaf springs, and i had to use long wheel studs as well to work with the spacers. ill get some pics soon.