All Task Force trucks did not have a VIN so to say. It was a Series designation with model year and codes for manufacture point and month and unit number. I would say true VIN started as per Wikepedia in 1981, date of standardized VIN. It says first used in 1954. But just like using an engine sn, you really can't call the old system a vin. Thats a problem when they try to relate it all in terms of vin, because the frame number usually does not have the series designation included, thus it confuses someone not familiar with the TF numbering system.
