Probably can make one if it is made out of a non ferrous metal but you can buy one already made:

http://www.classicparts.com/1954-87-Gas-Tank-Sender-Unit-Sock-Filter-5_16/productinfo/23-599/

I would have a new gasket, new screws and a new under-cab rubber hose ready. When I worked on mine it took three tries because each time the next bad part disintegrated on me