Stopped by the ford dealer today they had 3 2015 F-150s in stock 2 3.5 ecoboost and a 5.0 all xlt trim. I was suprised the payload of the 3.5's was 1920 lbs. 1920 for a standard payload truck they did...
Sounds like Ford is doing some clever marketing to ensure the F150 won't steal sales from the more profitable F250 by offering the HD payload pkg in base trucks only. Thats also likely how many of them sell anyway.