Here is some photos of my new fuel sending unit for my 1950 CJ-3A;

I ordered the new one from Walck’s 4wd. It came with new cork gasket. The float is not cork anymore.

You need to check if you are using 5 or 6 screws. Recent model use 6 screws.

I’m not sure if my cork float was original or not.

And it is installed!