What can I safely pull with my 2011 2500HD 6.0L GMC?

With the 3.73 rear end I would try to stay under about 10K lbs max loaded weight. The 4.10 would be good for another 3K or so lbs. Just my opinion. Good luck.

Is your truck 4x4? Ext cab? 4 door?

Whats the GCVWR????? And do you have a sticker like ADT shows?

I just checked my door tag -

GVWR = 9500
GAWR F = 5200
GAWR R = 6200

I do have the 3:73 gears

Thank you for all the replies. Obviously we can ignore what the salesmen tell us....

Okay - Going by the chart in the PDF that was posted it states tow capacity at 13,000/14,000. Mind you, I have not looked at my door panel yet but this should be a good indication. I do have the max tow package as I have the Titan 2.5" receiver hitch.

You will be limited by the GCWR/tow rating for any bumper pull/TT. That's in the 9500 pound range for 3.73 axle and 14k pound range for 4.10.

For 5th wheel, it gets messier. You will probably be limited at 9500-ish pounds again for 3.73, but payload limited for 4.10 axle.

You can determine the axle ratio from the factory by locating the sticker in the glove bow listing all the RPO codes. It will have one of the following: GT4 = 3.73 and GT5 = 4.10.

Payload will be indicated by the Tire and Loadign sticker on the driver's door or door jam. It looks like this: Note what your truck has where mine says 2051.

Thank you for the link. It looks to be quite informative. I will look at the door tag after work today.

You need to tell us the exact truck..Rear gear ratio? Whats the GCVWR say on the dorr tag? Whats the GVWR of the truck? Whats the payload say on the sticker?

Look here

http://www.trailerlife.com/wp-content/uploads/2012/01/DigitalTLTowGuide2011.pdf