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.

wiring is shorted out between sending unit and gauge then