I have a '92 2nd Gen 4Runner. The tires on it right now measure 235/75R15. Does that mean that the stock rims are 15" 's? I was wondering what the biggest size tire I could throw on there would be without adding a lift or rubbing. Also I'm looking for a wider tire cause I think it looks baddass when the tire sticks out further than the chassis. Main use would be road driving as well as off-roading such as climbing hills. Would you guys also recommend I upgrade my stock rims? Any comments would be appreciated.