True, but every one of these trucks run out of payload capacity long before reaching advertised tow capacity.
True...most of the time.
As long as you’re not over payload you’re going to be under towing capacity. I wouldn’t pay any attention to advertised tow capacity.
Not true. My truck weighs 6100#, my cargo cap is 3900, my GVWR is 10,000#, my towing cap is 15,500#, and my GCVWR is 22,000#. If I load my truck up with 2000# of cargo and only bring it to 8000# (2000# below my GVWR, and 1900# below my cargo cap) I no longer have a 15,000# tow cap, I now only have 14,000# because no matter what all the other numbers are, 22,000# is my max GCVWR.
So, even though you will almost always run out of cargo cap before you hit your towing cap, you still can be well below your cargo capacity and still be over your towing capacity if you go above your GCVWR.