i have 33's with 3:21's, though, with a manual.
it's really not bad at all with the manual, but, i would be hesitant to go any larger.
you will probably get by fine with an auto, although, it will most likely be a somewhat noticeable difference.
i went from 32's to 33" MT's and noticed a SLIGHT difference, but, again, it is with a manual. if you are going from 29's to 33's, you will notice a bigger difference. it is definitely do-able IMO. i didn't think it was that big of a deal, though, i do want to move out of my 3:21's altogether.
A forum community dedicated to Jeep Wrangler JK owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, reviews, engine swaps, troubleshooting, suspension, and more!