I love my 2012 SuperCrew Lariat EcoBoost 4x2 with 3.15 axle for towing my TT that grosses less than 5,000 pounds. Last summer we made the long tow from west Texas to eastern Oregon and back with no problems. We went up via Laramie and returned via Phoenix.
With my TT grossing 4,870 pounds, I'm slightly overloaded over the GVWR of my F-150, but I don't have the Max Tow pkg so I have only 7,100 GVWR. Yours probably has 7,600 or 7,700 GVWR, so you can drag a heavier TT without being overloaded. But probably not more than 8,000 pounds TT or 7,000 pounds 5er. And they don't make many normal small fifth-wheel trailers you can tow without exceeding the GVWR of the F-150. So plan on a TT and not a 5er.
With the right hitch, a TT will tow as good as a 5er. But the right TT hitch is expensive - over $2,000 for a ProPride. But then if you are going to tow a 5er with an F-150 that has shorter than an 8' bed, then you must have a slider hitch, and the excellent PullRite SuperGlide automatic sliding 5er hitch costs as much as the excellent ProPride TT hitch.
For one 350-mile trip from Austin to Midland County last month, I was grossly overloaded with my "other" trailer, an 8,000 pound 5er. The EcoBoost drivetrain has plenty of power and torque to pull the 8,000 pounds, even in the Hill Country northwest of Austin. My tow rating is 8,400 pounds, so I wasn't overloaded over the weight the EcoBoost drivetrain can pull, but I was way too heavy on the hitch weight - the weight the chassis can carry. So with your 3.73 axle and increased GVWR, if you keep the weight of a TT down to less than 8,000 pounds or the weight of a 5er down to less than 7,000 pounds, you'll probably love your F-150 EcoBoost as a tow vehicle, and not be overloaded over the GVWR of your F-150.
Grumpy ole man with over 50 years towing experience. Now my heaviest trailer is a 7,000-pound enclosed cargo trailer, RV is a 5,600 pound Skyline Nomad Joey 196S, and my tow vehicle is a 2012 F-150 EcoBoost SuperCrew.