I have almost 37,000 miles on my Ram Ecodiesel with 3:92 gears and I can tell you the weak link with the Ram= towing up hill ! Mine is tuned and deleted, btw. Power is not the issue, watching the oil temp gauge rise, towing a heavy trailer up steep hills is somewhat disconcerting. I know some guys have swapped grills to get better airflow and deleted the active shutters. So heads up, if you are looking at both. On the other hand, 3:92's may be an advantage, don't know.
2017 Ram Ecodiesel, 2008 Arctic Cat turbo diesel