When I was shopping for a toad, I briefly looked at the 2015 Dodge Durango. I concluded it was a larger and more upscale version of the 2015 Jeep Grand Cherokee.
The equipment names are all changed, but it looks like the 2 - speed transfer case is the same as the Jeep Quadra trac II transfer case.
The Quadra trac II transfer case is the must have equipment for towing the Durango. Ask around the dodge and Jeep forums to be sure.
Otherwise, I did purchase the Jeep Grand Cherokee (limited) and it works great as a toad.
2006 Newmar Essex 4502
2015 Jeep Grand Cherokee