My 68 Charger was built after Jan 68, cant remember off top of my head, way to may cars ago. I may have the info somewhere, now I wish I kept better records of past cars like data tags, sheets, engine numbers and all. At the time I had heard that early 68 cars didnt have the VIN stamped on drivetrain. Dont know at what point they started doing this, plant, or if its even true that early cars werent stamped, but by evidence of Dougs car, I would say some early cars arnt stamped.