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Old 07-27-2016, 08:04 PM   #1
MiraclePieCo
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New fuel gauge = Neg Ground?

I think I burned out my original gas gauge running it on 12 volts (used to work, now it doesn't). I want to order a new 12-volt fuel gauge from Classic Parts, part #24-725B. Does anyone know these will work on a negative ground system?
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Old 07-27-2016, 10:56 PM   #2
mr48chev
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Re: New fuel gauge = Neg Ground?

It should be designed for a negative ground from the get go.
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Old 07-28-2016, 12:06 AM   #3
my56chevytruck
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Re: New fuel gauge = Neg Ground?

Don't know for sure, but i believe it will be a negative ground, but, I'd call Classic Parts and ask directly, or find the manufacturer and call them.
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Old 07-28-2016, 12:59 PM   #4
MiraclePieCo
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Re: New fuel gauge = Neg Ground?

Well duh...

Ever wish you could delete a thread on here, lol? I called Classic Parts and was informed that all AD's of that era were negative ground - only GMC's were positive ground. A simple fact I was unaware of.

So yeah, ALL their Chevy gauges are negative ground.
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Old 07-28-2016, 01:22 PM   #5
OrrieG
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Re: New fuel gauge = Neg Ground?

I learned GMC were positive ground when I wired a radio I had hanging around into his GMC bus and watched start smoking.
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