In my 06 LJ with an auto, I went 4.56's with 33's for a couple years. It seemed about right for the road but I really needed 4.88's for the trail. Now that I've moved to 35's, the 4.56's are not cutting it. Really wished I went to 4.88's (5.13 would have been better but that's just way too small of a pinion in a D30).
But my other problem on the trail is that I'm running a 4:1 low range. It's just tooooooo low for Michigan, so I'm trying to do everything in high range. And every once in a while I go to low range.