Hey Guys, 12 volts system. My gauges were tested before putting them in. BUT....I had painted the housing inside and out ( to make it pretty )...gauges didn't work....had to investigate about the ground. Took it all apart ground it down and reinstalled it...worked great. I even gounded the sender with a wire to the back of the cab.
I just got back home,so I haven't had a chance to check it out. Still confused about it only going to half when Ign. is off vs. empty reading...Unless it reads what is in the tank even when off?
I'll keep you posted.

Thanks

1954 Chevy 3100 5-Window
In the Stovebolt Gallery
More pix on Photobucket

"True victory is victory over one's self."
Krav Maga isn't pretty ... but it works just fine.

Jimmi V.