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What is the difference between the gas gauge and the temp gauge. Will they interchange. Both have the same bobbins and they are the same size with the same electrical connectors.The only difference that I have noticed is that on my 58 the temp bobbin was larger and mounted on a recessed portion of the plate.

Not exactly certain what you're asking. If you are wondering if the gas gauge and the temperature gauge work the same way and can be interchanged, the answer is no. They're different entirely. There are at least 4 different gas gauge designs. You have is what is called a balanced electromagnetic coil gauge. To understand how it works please search and look for an article I wrote a few years ago titled something like "your fuel gauge explained...sort of." As for your temperature gauge, what you have in the GM electric temperature gauge is essentially a volt meter. The sending unit varies the amount of voltage received...all dependent on temperature. And there are both electric and mechanical temperature gauges. Good luck.

https://tinyurl.com/42ptnem7

There it is...back to what was it 2021? Seems longer ago, but hopefully it will help explain the fuel gauge and how it works. If not, please email me at [email protected]

Thanks for the speedy response. I have several clusters and they all have some difference. all have at least one bad gauge.

Anytime. Those bad gauges might still be good...it might be either the fuel sender or the temp sender that have gone bad. Very common for a fuel sender to go bad and while it is less common for a temperature sender to go bad they do over time fail.