Thanks kaydeejay abd fla-gypsy. I was researching payload for the ford and came across the 2004 Trailer Life towing guie...wow! I did not realize the number of different F 150's. Also, the guide breaks towing capacity into conventional towing and 5th wheel. Which is more accurate for me? because there is quite a big difference in towing capacity.
I'm not buying a 5th wheel but I assume the difference is because of wind resistance of a 5th wheel, and conventional could describe pulling a regular trailer with only gear.
As far as payload is concerned, it looks to be 1,500 lbs.
Thanks again