Lots of information already posted. My only addition is to remember not all F150s are created equal. I would go to the Ford site and look at the specks. The towing package you chose will change the towing capabilities considerably. I have a 2009 F150 with a 5.4 with the towing package and I love it. My TT is 22'. Good luck.
Okay I have one more thought to share. I ordered my F150 with the built in trailer brake controller. IMO the after market controllers can not offer all the features that the built in unit offers. This unit works with the computer to control sway and I believe the anti-lock breaking.
