What is the payload for a 2006 Dodge 2500 short bed with Cummins engine?

I've googled until I'm dizzy, and most links take me somewhere that they
want to sell you things, are full of popups, or you have to enter personal
information to continue.

I have gotten from 2150# to 2635#. I am talking about total cargo carrying
capacity. The load in the bed, a tank of gas, two passengers, and some
luggage.

Yeah, yeah, yeah, I can read GVWR, and all those numbers, but have yet to
deduce a firm CCC number.

Anyone know?

Steve