Thanks for the info on the airbags. They will be installed before I go out on the road next year. Had them on my previous '05 F150 for the towing my old 5er. That 5.4 pulled a 8000lb rv without problems either. Traveled numerous times to Myrtle Beach over the past 7 years and other destinations on the East coast. The '13 F150 EB pull even better even though the new 5er is heavier than the old.
"1/2 ton" truck is a misnomer left over from the older model of trucks.
The new 1/2 tons are a different animal, esp with the EB twin turbo and the HD suspension.