This is as close as I can get you to the right numbers:
2010 Ram 1500. You'll need to follow the link for which kind of Crew Cab you have, 4x4 or 4x2 and with or without rambox.
After that, you look it up by tire, engine, transmission and axle ratio.
My 2010 1500 Crew, 4x4, rambox, 5.7 hemi with 3.55 gears on 20" rims puts my total towing at 8300. My TT dry is 5700 (or so). I feel I'm within my limits on total tow capacity, but probably over on payload. My max payload is only 1280. I take up between 500-600 of that just with DW, kids, dogs and car seats, meaning I need to keep the tongue weight under 700 or so.