Been working on fuel tank and sorting out a problem with fuel gauge. I had the gas tank off and replaced the sending unit gasket which was leaking. I also cleaned the connection to the sending unit. After reinstalling I checked the gauge to see what it would read with an empty tank. It was just to the right of the empty mark. I then added some fuel and it read 1/4 tank. Added more fuel and it did not move . I then filled the tank and it still read 1/4 tank. So I have been driving it to see what it would read when the tank got close to empty. after a short trip today the gauge does not respond. I pulled the connector under the hood and the gauge did not go to full. I am guessing the gauge died. any other thoughts?