I'm Running the 6sp manual on the 2012 and have the 4.10 gearing. Power is certainly acceptable. I ran the Jeep stock for a couple months before lifting it and putting the larger tires on, I can't say that I lost much in the way of power or fuel mileage and I certainly like the set-up. The easiest way to put it would be that I have no plans on regearing. I did lose approx. 1 mile per gallon on the average with the Tire/lift set-up. It's perfect acceptable to me for everday use. I've ran plenty of town and highway miles and really don't see that much difference.
Hope this helps, overall if I had to do it over again, I would do the same set-up.
Hi - I see you are running 315/70/17 Duratracs. What trans and gears do you have and how is the power/fuel mileage. I like your setup but just wondering how practical it is for everyday use! Thanks, Scott