Payload vs CWR

Thanks for the timely and informative responses. I have been looking at this purchase for a couple of years now, lurking on message boards like this one, and think I understand the need to make real payload calcs based on weighing the actual truck as well as the need to make various modifications and upgrades to the truck and tires, which I am in the process of doing. The thing I have never seen anyone talk about, however, is the sticker I found inside the truck glove box.

It says the maximum loaded camper weight I can carry is 2,937 lbs. The implication is that somehow a camper rating is different than payload rating. The truck manual calls this the Cargo Weight Rating (CWR) and goes on to say that I need to subtract the weight of passengers and other gear in the cab from the CWR. That gets me down to about 2,000 lbs camper dry weight, which is a very light camper for a one-ton truck.

I can't find anything anywhere that talks about CWR. Not on Chevy's website or anywhere else. Everyone talks about payload, GVWR, axle and tire ratings, etc. If I focus on them, I can get the camper I want. Should I ignore the CWR sticker?

BTW, I can't figure out what LDT is an abbreviation for in the past response. Could you spell that out for me? Thanks.