Listed here is a single contact light socket for the 1953 and 1954 Chevy Backup Lights
The original light socked GM used for this backup light system in 1953 and 1954 Chevy’s was 1 1/2 inch in size. No one is making a 1 1/2 inch socket today that I am aware of. While selling parts for these cars since 2001 I have found that some of the sockets used by GM in this original application were one piece sockets and some were made just like these, that is 2 piece sockets.
These socket/adapter units work very well and can be made with either single contact sockets, as the original backup lamp socket was. Or they can be made with dual contact sockets for those people who do not want a backup light but would rather use the socket for a brake light.
This listing for the Single Contact Sockets
IF you have any questions please do not hesitate to call me