Did you try NAPA. RARE PARTS is expensive and one of the places Advance and Auto Zone order some parts from and you pay the "upcharge". A bolter her name 3B may be able to give you a lead. Send him a private message.

1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
In the Gallery
More photos
1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile