I ordered a set of 15x8 and 15x4 centerlines. I see alot of you are running the 50 series 275s. Was just wondering if that was for a clearance issue compared to the 60 series. The rear rims have a 4inch backspacing. I know the 60s are a little taller but just wanted to get some input from some of you all. Also I usually run 165 15 on the front but I called pep boys who I ususally get them from , and they said they are discontinued. I know other companies still make that size, but wanted to maybe go with a little bigger tire on the front.