Fuel sending units read WRONG time after time!

4 different times I have gotten the dash cluster working just fine until I put it back into the dash. then nothing works properly, even the lights are haywire

I asked "what mod ?" before. Doesn't matter really. You have to assume that's where the problem is. Here's a tip , everyone else's panel is just the opposite of yours in that they wont work properly while dangling from its harness connectors.