I'd be curious what your total weight is with the trailer fully loaded. My 24x8.5 is 4,000 empty, 10,000 gross but she's got a heavy tongue. Will squat my truck an inch or more even when it's empty. Will squat our Nissan Armada even more so usually need a WD hitch when pulling with it. Nissan is rated to tow 8,500 too but they suggest anything over 5,000 to use the WDH. What's the Durango rated for?