Hello, my 57-3100 looks to have the original fuel sending unit and dash gauge for fuel. The gauge has always jumped around quite a bit while I’m driving, at least 1/4 tank amount on the gauge when running, meaning when it’s full it jumps from 3/4 to full. It seems to do that throughout the cycle from full to empty, although empty is before the dot for empty. I purchased a new sending unit to have on hand when I remove the one in the gas tank, but I also be thinking about the Guage? Your thoughts are appreciated! Kevin
