On the 2012 it's a crapshoot. According to the window stickers I've seen, some get 3.73s with the tow package, some get them with the auto, other don't get them with either. Strange.
2012 Silver Sport S, Silver, 6 speed, soft top, 3.73s, LSD, PCG, Infiniti, deep tint windows, Pro Comp 1028 wheels, 33" Duratracs, Smittybilt bumpers and steps, KC fog lights, Mopar slush mats and fuel door.
Happiness is a belt fed weapon.