Hi Scotty. I've put in a new fuel sending unit into a 65 Ford Ranchero as the old one was bad. I had hoped this would fix my fuel guage issue too. But it hasn't. My guage is always consistently stuck on empty. When you use a jumper cables to test the guage and wire it reads full. I have been looking about for help all around but can't seem to find any. Any help or input would be great. Thanks in advance.