I'm running 245/45/17's on all 4 corners... 17x8 with 4.5" backspacing. They will fit a stock application with minimal issues. I did run into a few problems when I replaced the suspension but that was no fault of Year-one. I lowered the car with the hotchkis springs (SBC 2") in the front and 1.5 in the back. The front ended up too low (rubbed inner fender lip when hitting a dip at speeds), so i used global west isolators to raise it about 1/2". Another FGF member (salesguy) used the 2" BBC springs and he fit just right. Since then I have changed to an LS platform and removed the spacers and have had no issues. The main advantage that I like about the rims are they do not stick you to one tire like the stock 15" rims. If i could go back and do it again I think that I would have used the Detroit speed mini tubs and gotten a much wider tire but you simply can't beat the rims for the the price.