Hmm... A problum That seems to be occurring is that the yoke doesn't actully seem to "bottom out". The seal stops it before it actually bottoms out.
This is still the 904 /6 yoke I am using. are they possibly shorter?
That i don't know, i never had slant shaft. If you post the length of the machined part of your yoke maybe some other members can chime in and we could find out if there is a difference. Now i'm stumped....lol.
If it's not bottoming then your original pictures would definetely be out far enough.....