My own experiance... The body lift is fine if your not wheeling to seriously. Susp. lifts make a whole lot of differance on rocky stuff, but mud... or normal wheeling where your not articulating... youl be fine. I had only a 3 inch body lift on my 04 for over a year running 35.12.50s. I did fine in all kinds of mud and such. The only problem I had was articulation. Cost. I paid only 100 bucks for my 3in body lift brand new. With 35in BFG ATs I still havnt got that thing stuck. And believe me I have tried.