Now the latest debacle.
My engine came with the 4L60 Flex plate, with a 6.0 LQ4 (yes I know rather odd). Rather than drill it out I decided to get the correct 6.0 LQ4 flex plate (Silver one-pictured below)
I bought the, what I thought was correct 4L80 flex plate. A Chinese 6.0 LQ4 ATP flex plate.
After I get it and get it installed (now, its beyond the return period) then I read various sources who say, ATP flex plates (read Chinese) are junk and they SHOULD not be used, as you risk serious transmission damage if used.
https://youtu.be/sp6Wjtve3D0
So now, I had to go out and source a better flex plate. Thus I stepped up and bought a TCI flex plate.