Did you inadvertently use an idiot light sender? Ames sells the stock gauge sensor. It's best to buy parts for classic cars from experts and not Rock Auto. Not worth the hassle to save a few bucks (IMHO)
I have to disagree, it depends on the part. I've always had good luck with RA. Classic car places often sell the same parts at inflated prices. If you have the OEM P/N that would help too.
