https://www.cnet.com/roadshow/news/2019-ram-heavy-duty-hd-pickup-detroit-auto-show/

In terms of transmissions, the big-boy Cummins mates to a six-speed Aisin automatic that's built specifically to handle all that torque. The other, less powerful Cummins variant uses a different six-speed automatic, while the gas V8 hooks up to an eight-speed automatic.

So what does that translate to in terms of capability? To put it brusquely, it has a crapload of capability. The Ram HD will haul up to 7,680 pounds in the bed, and it will tow up to 35,100 pounds.