I've been browsing around looking for info on the Tow/Haul mode and found a writeup on the 2008 Ford 6.4L PSD, which included the following statement:
"Getting the truck and payload moving is one thing. Slowing that pack of ponies down is another. If you are towing and running heavy loads in the [COLOR=#0072bc !important][COLOR=#0072bc !important]truck bed[/COLOR][/COLOR]
, the Tow-haul gear selection in the Ford TorqShift five-speed automatic transmission is a marked benefit to safety and driver confidence. At the Michigan Proving Grounds outside Detroit, we hauled loaded trailers and loaded truck beds up and down as real-world road grades of the caliber likely to be found anywhere in North America. The tow-haul gearing changes shift points under acceleration, allowing the 6.4L Power Stroke to maintain higher rpm’s, stay up in the power range, and maintain gear selection as your rig crests the hill. On the downhill side, Ford’s TowCommand System works with the tow-haul transmission feature to downshift when the brakes are applied; allowing Ford’s true engine-compression braking system
to slow truck and trailer, and maintain a steady speed downhill. In the actual “seat-of-the-Levi’s” experience, this capability was, perhaps, the most impressive benefit, along with the consistent power delivery of the dual turbochargers, position the 2008 [COLOR=#0072bc !important][COLOR=#0072bc !important]Ford Super Duty[/COLOR][/COLOR]
truck as a class-leading work and fun truck."
This clearly says that it DOES have engine braking as part of the Tow/Haul mode! Now I'm really confused! What say ye, Ford gurus?