Hello, Neil,

Do you have a 1940 GMC Maintenance Manual?
Here is the pertinent section in the 1941 Chevrolet Truck Shop Manual.
My guess is that GMC & Chevrolet trucks used the same parts in this assembly?

Regarding your request for parts: this type of request belongs in the Swap Meet.

Good luck with this repair. Keep asking questions - members will post advice and suggestions.

[I see you have already posted a Parts Wanted Ad here - good]

Last edited by tclederman; 07/15/2019 10:53 AM. Reason: added comment on Parts Wanted ad