The numbers on the Durango make no sense anyway. GCWR 11000 lbs, max trailer weight rating 8950, curb weight 4758, leaving a payload capacity of -2708. Yes, negative. Why say trailer weight of 8950 when the maximum possible would be just over 6000?
Okay, I know why, it's just frustrating.
I've calculated needed TV specs as follows:
Payload 1980
Trailer wt rating 7600
Tongue weight 1140
Those numbers are based on the max ratings of the trailer, plus 20% margin.
Is there any way to guesstimate what the added load on the rear axle would be? So as to compare with the rear gross axle weight rating.