a question about the input shaft

[TexasT]

My friend in Germany is overhauling his 2004r and asked about this piece #505
I don't remember pulling this piece out or putting one in.
Thanks for any help.

 

[RmvBfrFlght]

It is way inside of the shaft:



RemoveBeforeFlight

 

[TexasT]

Thanks a lot off the info and pic. I will let him know.