Too little information about your truck. What powertrain? What gearing? There's some pretty wide spread in the Fords I recall, and you are looking at a notoriously heavy TT that'll be pushing 1200-1300# on the hitch with full propane, battery, power jack, WDH, and it's share of load ahead of the axles and loaded weight nearing 10K for sure. Heavy for just about any half-ton and I'm pretty sure the most stout version of your truck would be huffing and puffing with those numbers!
Edit: Have a look here:
2014 Ford Truck Towing Information
