Ok so this is my first dive into an auto transmission. I’m coming from the 4cly Honda world so I have only messed with fwd manual transmissions. I just finished my 4l80e build seemed pretty straight forward (had 2 different manuals) but I’m curious on how it works couldn't find much on google. when I spin the input shaft the output shaft doesn’t spin at all is that normal, I assume it works off of pressure to go into gears judging by the manual valve.

Thanks for any info sorry to be a newbie

 

find a principles of operation book
read it front to back
then you'll have an OK start