Yes. I measured the trailer on flat asphalt. The car as well With the ball installed. Difference, 7”. The car as auto leveling that can’t be shut off. Has to be close Or they will fight each other. Or so I am told. Make since anyway.Are you sure the trailer was level when you measured it? I just find it hard to imagine that the Yukon sits so high, seems the E2 shank wouldn't work on any 1/2 ton. (at least my F150 receiver sits a few inches higher than my ex- YukonXL).