My dad is getting his powerstroke soon and wants rims, he wants these wheels. The bolt pattern is 8x170 correct? These rims would be 20x9 with zero offset. I calculated backspacing at 5'' exact and the stock 20x8 with +40mm offset at 6.07 backspacing, this means the wheels will sit out 1.07 inches more than the stock wheel correct? I dont want it to look goofy is 1 inch to much? Also the truck will be leveled to fit these wheels, A 35'' tire will fit without rubbing leveled? Although he will only be running some where around a 33.