A little info on vin numbers,
In 1954, American automobile manufacturers began stamping vehicle identification numbers, commonly referred to as a 'VIN', on all vehicles. The purpose of the VIN was to give an accurate description of the vehicle. Early VINs, however, came in all sorts of configurations and variations, depending on the individual manufacturer. The only way to decipher these numbers today is with a VIN decoder.
Beginning with model year 1981, the National Highway Traffic Safety Administration, U.S. Department of Transportation, required that all over the-road-vehicles must contain a 17-character VIN. This finally established a fixed VIN format.
In 1985, the Department of Transportation issued the Federal Motor Vehicle Theft Prevention Standard to try to reduce the number of motor vehicle thefts. This standard became effective beginning with model year 1987 vehicles and required that high-theft cars have 12 to 14 of its major component parts marked with the VIN. In 1994, the Theft Prevention Standard was amended to include multipurpose passenger vehicles and light-duty trucks. Also in 1994, NHTSA published the final rule amending the Theft Prevention Standard to also list the covered major component parts and replacement parts to be marked for each of the classes of vehicles: the engine, transmission, front and rear bumper, right and left front fender, hood, right and left front door, right and left rear door, sliding cargo door(s), right and left quarter panels, right and left side assembly, pickup box, and /or cargo box, rear doors, decklid or hatchback and tailgate. The effective model year for this amendment was 1997.