When Ford build great trucks, they know squat about TC per my experience.
When I was ordering my dually, the camper option was offering stiffer front sway bar.
My camper was taking weight off front axle, so their offer did opposite to what should be done.
Their cargo capacity charts don't offer rear axle capacity, making them useless for TC application.
You have to do your own checking.
Don't have all the notes handy now, but my F350 Supercab dually can legally have 6400lb cargo on rear axle (and it was carrying more).
The chart above says 4600/5600 lb.