Thanks Carl. I have dealt with CASCO in the past. Great company. Per their website they seem well aware of the incompatibility of gauges and sender of early Birds. They even offer matched sets for the 55.  I believe the 56 bird and passenger car used the same fuel sender B6A-9275-A. They offer a sender unit for 1956 Thunderbird that should work in my 56. 

AKA   Bob-93021

Casco t bird parts in Coshocton Ohio have them, supposed to be better than what other vendors have.    Carl

Looking for a OEM fuel sender for a 1956 Ford sedan. Mine is way too rusty to rebuild - I think.
I have heard so many complaints about after market units not working so that would be my last option
I would like the OEM King-Seeley unit, either new or used. Thanks

AKA   Bob-93021