Well, There is nearly always a "Serial Number" VIN, is a more modern concept, but there was always a Serial Number. We "Grandfather" it by calling it a VIN these days
Vin = Vehicle Identification Number. and the information coded into the VIN includes the manufacturer of the ride.. If it's a FORD vin, and, not counting the script "F"s it's 11 digits long, (This does not apply to trailers) then the script "F"s are NOT part of the vin., and as I recall the first digit is the model year
GM vins of that era were 13 digits long, the model year was the #####YPSSSSSS Y is the model year, P the where it was made and SSSSSS the serial number. The ##### told if it was Chevy, Buick, Et-Al, engine size, and body style/line.
Modern vins the last eight on most all vehicles is the same as GM 13 digits. The first character tells where it's made. A 1(4 or 5) = United States, 2=Canada 3=Mexico and letters are over seas. Then comes the manufacturer, (IE: WV as the first two = West Germany, Volkswagen, in short, VW) and then come the description of the vehicle (Body, Engine and optinally transmission)
That is for cars.. Trucks, and Trailers.. Are different (Save for the first 2 characters)
Home is where I park it!