I believe the gear is 3.73, As another post said, my 5.3 can pull it but it screams going up moderate grades of northern WI.
I like the idea of bringing my loaded trailer to the dealer and hooking up a new rig and comparing it to my current truck going 0-60.
My 2 cents, 0-60 doesn't mean much to me. 30-70 tells a better story. That's when the gearing really comes into play. Passing or merging is where the performance is needed. I can't remember the last time I drag raced a guy with a load on!
I just got a 2012 F150 Ecoboost with a 3:31 rear end (my first Ford). I towed an 18' covered trailer with 2 sleds. A relatively light load, but I barely felt it. No sway whatsoever, just punch it and it goes. On the ramps I still got pulled into the back of my seat. Factory trailer brake control is a must. I spoiled myself and got the rear view camera. I had another guy waiting to guide me onto the tongue and I said NO, stand back!! I hit it bang on, first try!
I LOVE that truck.
Oh yea, mileage while towing was 20L/100KM at 90 to 110 KPH (sorry, I'm Canadian, eh).