Just scored a Guide-Matic (previous to 1960, known as the Autronic Eye) automatic headlight dimmer for the Impala. Found it on eBay and paid $275 after shipping. These were more commonly installed on Cadillacs. You very rarely see them on a Chevrolet. It was available as a dealer installed option. The unit appears to be… Continue reading Guide-Matic Automatic Headlight Dimmer
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