Least Shoddy Fuel Sending Unit?

MCPObr44 said
Bingo! And way back when... I had no idea about nichrome wire and how solder wouldn't stick to it. Thus why I am having this problem again. I've learned a lot since then.

If anyone identifies a source for the nichrome or someone who is rewinding boards, that would be great.

The heart of the problem of the replacements is the board and the float arm length.
See Fuel Sending Units and A-Body Fuel Tank Map

@Cuda Al shows his repair in detail -
Fuel Sender Rebuild

as does this How to article (except he gives up on fixing a board with busted wire - as I did at one time)
OEM Fuel Sender Repair 1967 Dart

impreza555 said
In the mid sixties to the early seventies the part number was 2421493. From around 1973 to 1975 or early 1976 the number was changed to 3621515. Then Chrysler changed the number to 4051004. When they went to the newest number, the float was plastic. I recall seeing a Chrysler memo telling why they changed to plastic floats. They said because of brass corrosion caused by small amounts of moisture in the fuel they changed floats to plastic.

Thanks. Good info.
Part numbers I looked up in the FSMs were:
1967 p/n 2257 493
1973 p/n 3621 615

Several changes in fuel formulation in th 70s. One of them may have resulted in greater reaction with brass.