1935 Truck Hydrostatic fuel sender help
 

City: Minneapolis

State: Minnesota

I have a 1935 Big truck (model 51), with the original hydrostatic fuel gauge system. I am in the process of cleaning out the fuel tank and restoring a corroded fuel gauge sender.
The sending unit is in restorable condition, for the most part, but the main air chamber is too far gone to repair (see pictures).
I have not been able to find the whole sending unit, so it is my hope that someone out there has a sending unit from a car that has a good air chamber that I can purchase.
Anybody know where I can find parts for a sending unit, please?