I really hope your truck's towing ability is better than mine was, and your towing situations are different from what is normal for me in my part of the country. My Dakota was an '07 and the tow rating for that year's 3.7 was a max of about 5000 lbs., which my truck was pretty close to. My truck's rating was fine, but it's real world ability just didn't fit for me. Maybe the newer Dak 3.7 has a higher rating.
There have been a lot of us on this site and the other RPod site that have thought our tow rigs would satisfy us while towing our Pods; we've been disappointed and moved up to slightly more able or much bigger towing rigs. I believe that my Dakota would have done fine for me--if I had lived in a different part of the country with fewer foothills and passes to have to always deal with. Best of luck and enjoy your trailer.