I have 3.07s in my TJ which makes 5th gear pretty much unuseable; it was worse when I had the 31s on there; now that I have "regressed" to 235s again it isn't "as" bad; I have a set of new 3.73s here for the rear but need the carrier for 3.55+, as well as the R&P and carrier for the front. I run in 4th gear quite a bit.