Fuel gauge question

Hi all,

Had a bit of time to look at the instrument cluster I finally got out of the car. Going to do that voltage box replacement on the back of it. Mucking about with the VOM and get continuity across the temp prongs on the back, but nothing on the fuel gauge prongs. I'm wondering if the gauge finally fried or something.

What was happening was the fuel gauge would work one day for most of the day and then the rest of the month it didn't do a thing. Temp gauge works all the time. So, thought it might be the sender. Turned the key on and grounded the wire at the tank. No change, needle stayed below empty in the same position it is in when the car it turned off.

Sound like the gauge is bad or I'm I thinking incorrectly on how it works and no continuity is how it should be? Any other bench test?

Just don't want to do the voltage thing, get it all put together and then have a bad gauge so I have to pull all out again.

As a note, does anyone have a working fuel guage they want to part with just in case I need one????????????????????????

Here is the type cluster I have in the car.

Cheers