Yukon Denali AWD questions

[Babifblss]

Hi there!

We're currently on the hunt for our next vehicle, and I've been looking at used yukons, mainly for the third row seating for our family. But my issue is we have a two horse bumper pull trailer, that at max capacity comes in at about 7800.

I read somewhere that the AWD in the Denalis won't handle the abuse that towing demands. Something to do with the viscous clutch...something. I can't remember /:

Is this something I need to worry about, especially in a used vehicle? (Trying to stay under 10 yrs/120k)

Any input to this question, or even a better option would be greatly appreciated!