Hello all. I went to a dealer today to look for a Cummins ram and saw the JK sitting there and I think I changed my mind. I want to get the manual transmission. I didnt drive it yet just kind of poked around and ask some questions. This will be my first jeep ever BTW and Im not quite sure what to expect. What kind of MPG can I expect with the 3.21 axle ratio vs the 4.10. Thank in advance.