i dont offroad so much, but i do beat the poop out of mine in bad weather responding to fire calls. i found that a 2" bodykit and relocating the bumper up works fine (but then again i bent mine coming from a 2ft jump <img src="/forums/images/graemlins/smile.gif" alt="" />) i would say since you offroad a 4" suspention lift and 31's would do you good.

1995 nissan maxima se, 5spd short throw, aluminum flywheel and crank pully, stage 3 clutch, custom ported top end, full 2.5 exhaust jdm front end