The 3.8L V-6 with an auto is going to make you wish you kept the Hemi. The overdrive gear in the auto tranny is like .69:1. Terrible gear ratio. You will find that the 4.10 axle gears with 32's is still too high.
I regeared to 5.38s (with 37's) and supercharged mine. All is good now. More power than I know what to do with (besides snap axles and twist driveshafts in half).
2008 2-dr Rubicon, auto,
RK 2.5" Max Travel, Rancho 9000XL shocks, 37" Nittos, 5.38's, RR skids, Warn VR8000-S.
RIPP Gen 2 Stg 2 Supercharger.
Political Correctness offends me.