So how do you like the GMC? I just uninstalled my system from my Silverado SS so I can sell it. I'm in the market for a newer truck. The rust on my Silverado has me bitter. Had to have the brake lines all replaced and the right rear quarter panel repaired. I'm moving on before the left rear quarter pops out. I am torn between the newer Sierra All terrain or Denali or a Tundra. I heard the Sierra's had some tranny issues.