no gas gauge or temp gage

,66 should have the internal voltage regulator inside the fuel gauge. Lots of info here, use search bar to search.

When I opened up the fuel gauge I found my voltage regulator was toast (it's like a set of points that opens and closes to get something close to 6volts out). I added a 7805 digital regulator to replace the IVR. Here's a picture. I mounted it to a heatsink. All I had on hand was red wire so that's what I used, lol.

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