This is a tear-down of a 6L90-E transmission of a 2009 Chevy Avalanche. What I explain here is what I have seen so far with these transmissions.Besides what you see here is is also very important that you perform a Fast Relearn Adaptation. Otherwise you will have unpleasant shifting and drive-ability issues. The part number for the piston is 24238700.
Post time: Jul-13-2017