dundonrl wrote:
2012 to 2013 Ram 2500.. from what I can tell, the 13 uses the 2012 Ram 3500 rear springs, the manual tranmission equipped went from 610 to 660 ft lbs torque, and you can no longer get the 3.73 axle ratio, only the 3.42. With that being said, they increased the towing by almost 4000 lbs, even going with a less capable rear end gear ratio. This to me, makes me think Ram was really under rating the towing capability of the 2010-2012 Ram 2500's in the first place.
I seem to have read that the new Rams have improved cooling and that could easily contribute to the higher tow ratings with the lower 3.42's.