Nice rig you have there, but if you bring the rear of the Yukon up you will be sitting nose high on the TT and that is not good. It may be an illusion but it looks abit nose high now. So you would have to move the hitch head down further on the shank to lower the nose of the trailer. Better to fix it before you get into lots of traveling.
When we picked up our new TT a couple weeks ago they had a real issue trying to get the TT to sit level because of the trail hitch location and the height of the hitch on our truck, 3 hrs and 4 hitches later they got it perfect.
Good luck with the new TT and happy camping.
John & Deb
2011 F250 Lariat FX4 Crew Cab 6.2
2011 Flagstaff V-Lite 30WRLS
Days Camped 2013: 16 2014: 5 2015: 3