I'm picking up a 2.5L auto TJ next weekend for a really good deal. I know that itll suck on highways because it has 31s and lots of steel bumpers and armor which will weigh it down. I've heard that they suck at merging on the highway so what gearing do you run with a 2.5 and auto trans on 31s or 33s? (I dont want to rear everybody saying that I shouldnt get it with that motor/trans. I found a cheap crashed TJ with a 4.0 and I'll swap the engine and trans.)