What is the biggest tire that will fit on a stock 1992 Ford F-150 4x4? I have heard that the biggest is a 31" with no lift. Some people say you can run a 33" with no lift but I don't think they will fit. I want to lift the truck in the near future but need tires right now so if 33's will fit, then I will go that route because it will look weird lifted with 31's. Can anyone help me out?

Thanks (Jeffronismo)