I drive 33's w/ a stock CJ-5 (44, 30, 20, T-18, 304) with a 4" lift. I do "difficult" trails w/ them. If you don't have a T-18 or a 4:1 transfer case you will be very frustrated trying to wheel either tire. I say get the 35's and don't look back. If you get the 33's you will regret it, it will just be a matter of time.