hey my boss just recently gave me some 31in tires for my 99 cherokee sport. they dont fit. the guys at the shop told me it would need about a 3in lift. i dont want to go to nuts cause i live in suburban nj and cant really go off roading too much, but i was just wondering if any one would tell me what i would basicly need to get a nice 3in suspention lift on my truck. if you could advise me you would be awsome. thanks.