This is a street rod parts house
Yogi\'s that has some information on senders. It looks like up to 1964 is 0-30 ohm , 1965 and up 0-90 ohm.
You have to shorten to length the float arm to adjust. If you just bend it, the gauge will never read clear full or empty depending on which way you bend it. I bought one of the above units for my 37. They have great direction for setting the right float arm length. Joe
