i have a sidekick that i mostly use in mud and daily driving. i have a 3" calmini suspension lift, and 31x10.5 tires, and it does better than most 4x4s ive driven, despite only having 31's. 33's are big for any suzuki, and i dont think you should go any bigger than that unless you make it wider and longer (unless its a 4 door kick, then just make it wider.) the ifs on the sidekick does great on the road, and you have one less differential dragging through the mud since its tucked up higher. even though i prefer sidekicks, if i were rockcrawling i would get a sammy instead, but i think the sidekick is a better mud truck anyways. just my opinion.