Let’s see those 255 60 15 rears!!!

Rob, we only got 12.5" (317mm) from inner fenderwell to the inner lip of the fender at its lowest/widest point right at the trim. 255mm is a 10" tire...we got 1" of wiggle room on each side, hardly enough to change the tire once we got it installed let alone having clearance when its 'up in the well' under acceleration or going over a bump....I'm all ears before buying the largest tires I can for a 15X6 4 3/8 backspace rim. I'm actually more interested in a taller tire like a 70/75 series to fill the wells and give me a slight rake.