Found a blurb about it online. Ram reps reaponses:
http://www.tfltruck.com/2015/05/ask-tfltruck-ram-trucks-questions-answered/
"WHAT ABOUT THE 8-SPEED AUTOMATIC IN THE RAM HD TRUCKS?
The short answer is: no. The existing 8-speed TorqueFlight automatic transmission is not rated for heavy duty requirements of towing up to 30,000 lbs or hauling over 7,000 lbs. It is also not rated to hold this much weight on an incline in Park."