Uh oh. Re: towing capacities.

[bluetoy]

I have an '18 Crew 6.5' box with sport package, max tow and 20" wheels (which are required for maximum tow rating of 13,200) and it's good to tow 13,200 lbs. Bill has a nice new '18 magma crew sport spec'd with max tow and is good for 13,200 lbs trailer. Max tow requires eco boost and 3.55 gears unless you get max paylaod then you get 18" wheels and no sport r even high level 302A or 502A pkg. If you want 5.0 then no max tow. You can still tow 11,000lbs with a 5.0 in 2018. Max tow Eco boost with 20" wheels has rear gawr of 4050lbs and if you get 18" wheels and no max payload you only get rear gawr of 3800lbs. I have studied the crap out of this. All my numbers are for '18 f150's

I guess that doesn't really help you out. Someone at your dealer was a bit shady. Sucks. Im sure t will tow just fine anyhow. I towed my 38' camper that weighs just over 10,000 lbs with my 09 f150 that was rated for 9600 and payload of only 1333 lbs with no trouble. Are you using Weight dist hitch?