I guess it also depends on how tall the tire is too but from what I have seen 15 x 10 and 5 to 5.5 inch backspace centers the wheel. The max I seen is a 325/50r15 on that combo but it rubs a little on bumps. 295/50R15 is safer but is a short tire. Its been asked a lot and you can find it in the archives I think.

Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.