I did a long post on this back in September. Another trick I found useful is the second shaft is the same as the odometer shaft and can be used to push the odometer shaft through while maintaining alignment of the number shafts.

Just be careful not to lose the small springs when you remove it.

Hope this helps...

__________________
Mr Goodfahrt (pronounced FAIRT... means "good trip" in German)

1982 300D Turbo Pastel Gray (off-white) 200k+(?)
newbie but willing