Got mine back from the dealer Saturday after tranny flush with TC replacement.
I didn't realize how bad the shudder had gotten. Tranny shifts smoother in 1,2,3 and accelerating around 50+ is free of the running over rumble strips feeling.
Now the real question is how long will it last and how long will it take GM to come up with real solution not a bandaid.
Here is my invoice. You guys see anything on it I missed in my hurry to GTFO there.
Though the highlight of my Saturday besides getting the car back was this letter from my state's Attorney General office to GM regarding my complaint on their lack of repair action and stopping TC replacement.