Hey DJ - Haven't heard from you for awhile but I don't check in here much either. I had the Ram 3500 SB dually with the AF 811 on it, took it to Alaska and back, worked great for us! It had the Cummins with Aisin transmission. We ended up getting a Host Mammoth last year so I traded my shortbed version in for a longbed with all the same options and color. I also have the factory rear air assist suspension which works great for me! If you have any questions you can always PM me also.
(2) pics of the 2016' Ram with AF 811
Picture of our new 2018' Ram with Host Mammoth