1962 Swing Away Steering column issue

[Peters 62]

The swing away wheel became very loose and a piece fell onto the floor when I moved the wheel to the left. It’s a small round piece, see picture. It works but is very loose now. I don’t see any parts on the Tbird websites. Any ideas?

 

[daytonthunderbird]

That looks like the stop bumper on the end of the treated rod, which adjusts how far the column moves to the left