So far I've only made one trip with my 6.4 and the RV. I do have the 4.10 gears. I am very happy with both towing and as a daily driver. No doubt it's not like the other Cummins I've owned pulling, but I knew that going in. It is pretty dang good though. When it finally does downshift into fourth climbing a hill with the cruise set, it opens up and goes to town. Very good riding and comfortable truck. If you're not towing all of the time, I would recommend it for sure.
2014 Eagle 34.5 BHTS FW
2016 Ram 2500 Laramie 4x4 Megacab
4.10 Rearend, bed cam, air suspension