Grit Dog, The 8 speed is great. Hope Ram puts it in the HD behind the 6.4 it will be a big improvement. Ram / ZF has three levels one light duty only rated for 332 TQ for the naturally aspirated V6s. One more standard version rated for 516 TQ for the Hemi & EcoDiesel. Maybe add a bigger pan but this should work well for the 6.4 Hemi as well. A common tuned ED puts out more torque than the 6.4. And a beefed up version rated for 664 TQ which is not enough for the newer Cummins and I really don't think its designed for that kind of work anyhow.
BTW some vendors etc rate transmissions by HP because the American public is so used to discussing HP. But at the manufacturer level they rate them by torque. This helps people better understand the relationship between HP & TQ. Torque is how much work an engine will do at a given rpm horsepower is how fast it will do that work at that rpm.
I have a small transporter business and use my tuned ED to deliver Airstreams & a few Gulfstreams & Forest River TTs from the manufacturers to dealerships around the country. Usually with another TT or boat or cargo trailer and or a loaded bed on the next leg or return leg. I do more trips through the western grades than anywhere else so the 8 speed is well worked with 240,000 and she has never missed a beat.
Powerdude, Your turbo comment was addressed but to add to it. When not wicked up and overboosted beyond stock boost turbos routinely go 500,000 miles. The do in Semis where they run on boost all day everyday. I am an original owner of an 87 Buick Grand National ie some of the first automotive turbos that were properly oil cooled from the factory. It ran overboosted for years and was still good at 125k. My current Eco turbo diesel is still good at 240k and has always been worked hard.
I suspect the new 10 speed is going to be a big hit. I don't buy a truck to hot rod and fuel economy & longevity is more important to me so I am looking forward to seeing what the new 10 speed with the small diesel in the upcoming F150 will do. It should compete with the ED and will have the benefit of having a crank driven fan.