I understand *some* parts are available now that weren't - A guy name "Pete" is used by many of us to re-seal it and likely do some other stuff again
@sfdon can help. Lastly I really liked this thread that talks about what I was under the impression was impossible - read the entire thread, it talks about parts, a bearing puller and using heat to remove the bearing (I think):
Manual transmissions seemed simple before tearing into this. It all started when a fellow E9 enthusiast asked me if I wanted a bad transmission for parts. He had left the trans on a shelf for 15 or more years, as he learned if you don't spin it from time to time the gears dry out and rust...
e9coupe.com