Hello all longtime lurker first time poster. I have a 1974 B7100D that I purchased partially dissembled. The former owner believed that the gears inside were falling apart due to his cursory inspection after pulling and opening the transmission. well turned out that it was a bearing that had exploded. So I made the repair and I am in the process of putting it all back together and I have a part that I cannot Identify. I am hoping that someone here knows where it goes and what it is. This is the link to the picture. thanks for your help!
https://imgur.com/gallery/8qXsgq0
https://imgur.com/gallery/8qXsgq0