In my case I will try to mount 245 60 R14 on 3,5" backspace rim wheels, done in the rear, just had to cut 1/2" from the inner fender lips, clearance is 1/2" back there.
Still have to assemble the front this weekend I hope, so if the tires on front do not exceed the width of the front fenders on top, I`d be doing this.
The front brace right in front of the tire is easy, the fender will flex and can be pulled out maybe 2" if it does not look ridiculous but the fender brace on top of the tire does not seem to allow much pulling out, maybe 1/2".
It is a great idea before cutting the fenders, as you and Bob said.
