Re: 2010 Tahoe towing...
Out of the factory, they are all rated for 5,000 lbs max. I ain't seen a Tahoe, F150, Titan, Armada, Silverado, Sequoia, Sierra, Tundra or any of them rated AT THE HITCH for more than 5k. The hitch is the little device at the back that is essential to the task at hand: towing more than 5k.
Hook up your 6,000 lb boat/trailer and you are over the rating of that hitch.
If someone finds any of these new vehicles rated at the hitch for more than 5k, please let me know.
I've seen the ads:
"9100 lbs when equipped with max towing"
"When properly equipped with heavy duty tow package"
I've checked the boxes on the order for for max towing, or heavy duty everything, 6.0 liter engine upgrades, etc.
Guess what: You get a hitch rated for 5k lbs. That's it. I am sure none of you are running around setting up weight distributing attachments, because that is what you need to properly tow over 5k with these trucks listed above.
I guess you could visit the local hitch guy and get a real Class IV hitch. Your call.