This tire vs. this tire...

245/45R17 Front 255/45r17 rear - depending on space / do the rear discs move anything outward? I run P245/45r17 rears on 17x8 5.72" BS bullets with 1967 8 3/4" no spacer just clears the outer inner fender on the rear. Any bigger on the front & I would rub. I will post photos of mine after the weekend.