That's a loaded question that you have asked. A lot depends on what type of powertrain do you have in the truck. Diesel engine, Allison transmission, 4X4 and what type of differential 4:10 or some other size. Also what type of tires and rim size do you have.
I have a 3/4 ton Ram but I have been towing heavy with this truck and I know the capabilities of the truck and what I have done to increase the ability of the truck.
2016 34RL CC; 2008 Ram Mega Cab 2500HD, 6.7L, 68RFE 6 speed, 4X4, Smarty S67