Fix the stock what? The gauge worked when I took it out, I replaced all my gauges with Autometer auto lite gauges. The sending unit works, too (it's almost brand new). The problem is that the autometer fuel gauge is for a GM sending unit, so it shows close to empty when it's full and close to full when it's empty. I plan on putting in a fuel cell and getting rid of the tank anyway, so I can wait and put a GM sender in the cell if I can't find one.