I have only read thru page 6 of this thread, but I have not seen anyone post this link
https://www.ramtrucks.com/towing-guide.html It is from the Ram website. When you go to the page, choose "look up my vehicle" and then put in the vehicle VIN. It will tell you the payload and maximum towing. For our "2016 3500 Big Horn (w/ lonestar package) Crew Cab, 4x4, 8ft bed, SRW, 68RFE transmission" the maximum payload is 4430# and max towing is 16960#.