Confirming a Matching Numbers Vehicle

Confirming a Matching Numbers Vehicle

What to check to authenticate your GM musclecar

For the purist musclecar collector or restorer, having a "matching numbers" vehicle is extremely important. A musclecar that still has all its original parts is more valuable than one that has been restored with reproduction parts. Originality is considered the basis for value, particularly when it comes to low production number vehicles such as the 1969 Trans Am or 1970 Buick GSX, both of which had less than 700 total units manufactured.

A Match Means Money

Always use accurate reference materials when researching your favorite car. Most restoration suppliers have books containing all the important information you will need to confirm the "numbers" for any make and model musclecar. If correctly coded parts are important to you, always do your homework before buying a vehicle so you don't purchase a clone or well-disguised counterfeit. Here in our Image Gallery we will examine the number and letter codes, and their locations, for most of the 1964 to '72 GM "A" body musclecars, which include Chevrolet, Buick, Oldsmobile and Pontiac. There are some variations within each manufacturer, but with the right reference material you will have no trouble verifying your car, hopefully before the purchase. Our examples are from a "matching numbers" 1970 Pontiac GTO.

letter code matching numbers vehicle
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