An Informational Resource For All Police Car Enthusiasts. Click the links below to find information for the Chevrolet Caprice 9C1, Ford Crown Victoria P71, and the Dodge Diplomat. Check out our VIN and RPO Decoders for specific info abo Identify Your Truck. For 1952 Ford the VIN plate is attached to the rear face of the driver's door. The information on the rating plate is the VIN number. Jun 01,…