i know I'll probably take some heat for this, but if your going to run 33 or 31 inch tires, is a v6 diff really that much better?? I know it's more $$$. i called the junk yard for a v6 rear axle and they wanted $450. i have spare 4 cylinder diffs but I'd have to pay a lot more to go the v6 route. Unless you already had the v6 axle, and then it would be cool to have the Aussie locker option.