VIN & Date / Casting Codes (Pre-1981)

The 17-character VIN was standardized for 1981 model-year vehicles. Earlier VINs were manufacturer-specific and shorter, so decoding depends on the marque.

Casting Date Code — Month Letters

LetterMonthLetterMonth
AJanuaryGJuly
BFebruaryHAugust
CMarchISeptember
DAprilJOctober

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