I cut the rear fenders with nice big openings so I won't have to worry about any rubbing now or in the future. I am only running 35" tires now but will eventually go up to 37's or 38's when I link the suspension in the future. After the body is painted I don't want to have to come back and cut the sheet metal because of tire rub.
I now have some sheet metal work to do on the inner fender wells.