Just go for it, why buy something that you don't really want. Save yourself the money and buy 33's. I had 30*9.5 bfg at's, then 31*10.5 bfg mt's, then 32*11.5 gy mtrs' now im back to bfg at's in the 33*12.5. It runs fine with stock gears and some power mods. The 33 inch AT's ride better(more power) than the 32 inch MTR's. They also seem to better in the snow. Maybe is just that they are new. Im putting in new gears, (4.88's) and a locker and some 30 splines next week. But if your wondering if it can be done w stock gears the answer is yes, with no issues other than you lose 5th going up hills. But you will lose 5th with 31's. We drive 4 Bangers not highway cruisers.