68 Dart VS 68 GTS

I don't think the 68 and back cars had a VIN number stamped in them anywhere. I think it was 69 that they started to stamp the VIN number in them, 68 and back had a number that matched the fender tag but not the VIN.

Your right, I don't think they were on 69 either. It was common on 70 and newer models.