This is an issue I don't know much on. I need help with wheels and tires. I am going with 15 inch weld wheels but I don't know what tires would fit on what wheels. I want to put at least 265's or 275's on the rear. the wheels I am looking at now are 15X3.5 with a 1.75 inch backspacing on the front and 15X8 on the rear. this is just my thought. I could change. Will these sizes even fit? and what backspacing would I want? the car is not lowered.