Add your VIN on this page: https://www.ramtrucks.com/towing/towing-guide.html/vin-lookup and it will provide the payload and tow capacities as built. Subtract any equipment or persons added. I usually get a CAT scale ticket with full fuel as a driver, then get one showing the numbers when loaded.Thank you for the information. I have decided to go with the Tradesman 3500 with an 8 foot box. And of course the dealership couldn't tell me what the payload was after everything was added to it. But I am sure the 3500 will give me the payload that I need.