What can an Avalanche pull?

Luminajd wrote:
We decided to buy a camper so I have done some research on what we can safely tow with the manual saying our towing max is 7100 pounds. I get lost on the math but realize 6,000 is too much, correct? We want bunks, a queen and a slide out. We are having a hard time finding this under 6000 pounds so my husband tells me look at all the heavy (6700) pound trailers Craigslist people advertise as 1/2 ton towable. Can someone settle our argument and tell me what length and weight we can safely pull?
(I have googled without a definitive answer)
Thanks!!!
Edited to ask the dumbest question ever. I keep reading about trailer brakes. Do I buy these seperately or are the on most TT? I have read 1,000 TT ads and never see them mentioned as being already on the TT

i own an '07 Avy with the 5.3, 3.73 rear end and the factory tow package. my tow capacity is 7200lbs. with only a 150lb. driver in it.
i tow a 24' HTT that weighs about 5200lbs. loaded for camping, with an Equal-i-zer WDH and Prodigy brake controller.
i live out West and i wouldn't tow anything more than 5500lbs., since i have numerouse mountain ranges to get over. so a lot depends on where you plan to tow. if you live in Florida or Iowa, you won't have to worry about mountains.
i don't recommend going over 28' for the trailer.

NEVER believe something that is advertised as "1/2 ton towable".
go by real numbers, such as the trailer's sticker weight, which is on a yellow sticker on the outside. on older trailers, it's on a white sticker inside the trailer, ususally on the inside of a cabinet door.

trailers in the size you're looking for, will have electric brakes, therefore you're required to have a brake controller. also, you'll need a good WDH with built-in sway control, like the Equal-i-zer or the Reese Dual-Cam.