2012 GMC Sierra / Size of TT?? (NEWBIE)

I would keep the weight in between 6-7000lbs loaded, which means looking for a dry weight around 5-5500lbs. Don't use the brochure dry weight, it's usually low and sometimes can be anywhere from 100-500lbs low. If you can get out and look then find the factory sticker (usually on the door) that's show the shipping weight. That's the most accurate dry weight of the TT. There are lots of new 'lite' style TT's out there. New technologies have allowed the TT manufactures to make TT's lighter and still be strong. Length isn't as much of a problem so get the longest one you need. FWIW though I wouldn't go over 30' with a real lite TT. Side winds will give you trouble.