RAM 3500 Dually tire pressures

[vipermanden]

OK, I went on line and searched around for correct tire pressures for a 2016 Dually 3500 RAM, and I got amazingly different results. I got people running 50-80 in the fronts, and 35 to 80 in the rears depending on loading etc. So Also the side plate on the door is not exactly clear either, so I could really use some recommendations of what I should have the pressures at, when I am just driving around unloaded vs. pulling my Monty 3820FK which is not here yet, so when I have 2,810 pounds of tongue weight in the bed along with the two of us and our dogs and the hitch in the truck, so total would be 8,100 pounds plus 2,810 + 700 + 100 misc. so the truck weight would be 11,710 pounds and would be pulling a 15,000 pound trailer that is rolling on 12,000 pounds, because of the king pin weight being put on the truck. Anyone have good experience for pressures for driving unloaded vs. loaded? I have the LT 235/80R17E OWL on/Off road tires.

Thanks in advance