2015 GM Trucks will get 8 speed Transmission

I towed a TT at 60% of my tow rating with our 2012 VW Touareg TDI with 8-speed Aisin transmission, and I didn't feel like it was hunting excessively. I felt like the computer always chose the correct gear and after manually choosing the cruising gear for a while, I just let it do its thing because it did a better job. Most of the time it would hold 8th gear on the flat unless there was a strong headwind. The trans is so smooth and the engine so quiet that you hardly notice the shifting anyway. New technology = awesome.