2011 King Ranch had HD towing included.
Its only options include:
* 3.73 non LS on regular length only (this truck has axle code 16)
* Bucket 2nd row (this truck has)
* Air rear suspension (can't tell on this truck)
* 4WD (this truck has)
* Rubber mats (not shown on this truck)
* DVD head rests (not on this truck)
* Power Moonroof (this truck has)
* Power running boards (this truck has)
* Navigation (this truck has)
* Option group 401A included most, but not all, of the above.
2011 Limited also included HD tow.
Only available as an option on 2011 XL, 2011 XLT, and what they called 2011 XLT Premium.
For what its worth, trailer sway was standard on every 2011, with or without HD tow.
ETIS was 100% complete garbage anyway.