Just subbed to your channel. (I used to love watching the AT teardowns on the Precision Transmission channel before they got a billion subs then went private $$$).
Do you do any work on the 6L80s?
If you're interested, Richard and Teresa are working out of a new shop. He's on light duty right now, I think, after shoulder replacement surgery, but he has a few videos up:
Wait, what? What happened to Precision Transmissions/Richard?