Gas gauge not working after tank swap

Hi all, I need some advice. I bought an all original 74 Challenger Rally. The gas gauge was working. I noticed that the corner of the tank was sleeping, so I bought a new gas tank, and took it to a garage to have it installed. I had read that the new sending units are not very accurate, so I told them to use the original sending unit since it was working.

When I got the car back, the gas gauge was not working. The mechanic said that he put all the wires back as they had come off. They are...

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Author: jeryst