The whole "VIN" thing can be a tad confusing. In a literal sense the definition of VIN is Vehicle Identification Number. That can be any number from a factory assigned number to your birth date. The number used on your title, wherever it is on the vehicle, whatever the number is, is the VIN because that is the Number used to Identify your Vehicle. To Tim's point, the modern use of the VIN wasn't around when your truck was made. As he noted if your truck was titled using the Unit Serial Number or the Engine Number AND that number is still part of your truck you should be good to go.
Last edited by Tiny; 02/05/2016 4:23 PM.