Interesting - my response did not post - trying again:
https://www.fordtruckzone.com/thread...ations.657279/
scroll down to Payload Package Selector (close to bottom)
SuperCab
3.5L EcoBoost
7850 GVWR
Far right column 163.7” Wheel base 4x4: 2710 lbs payload with Heavy Duty package and 18” wheels.