46RE Transmission

Just wanted to Thank everyone that replied to my previous posts. I finally put the transmission back together and back in the truck. I’m ashamed of what the problem was but chalk it up as a hard learned lesson. The round ring that holds the sun gear in was not completely in . I took a screwdriver and hammer tapped it in and it allowed the sun gear to be flush. Transmission is working perfectly now.
Thank you all for the help I received.
Have a great night.