I for one would be interested in seeing the documentation you are talking about from "Ford"..
From what I've read here and what I've been told by Ford, the weight ratings are based on what the vehicle can STOP. So going by the ratings below, my truck can STOP a 5th wheel that weighs up to 15,200lbs.
If the pin weight, is above the 10,000lbs GVWR but below the 6Is the pin weight subtracted from the trailer weight? The pin weight is 2175lbs of the 12,201lbs trailer weight, right? So the truck is carrying 2175lbs, and towing 10,026lbs?