4.7L V8, 3.73s, 32" tires in 4lo (2.73) is the ticket for me. Love the v8.
I had a JK Rubicon, 4lo is to low, and it is to gutless in 4hi. You have to play the shifter just right on the JK, but 4lo was better than 4hi... Need to keep the revs high on that motor.