It could either be a QC stamp or possibly the gate or cradle the body traveled down the line in for assembly. The number would indicate which cradle needed adjusting should a flaw be found during assembly. There is no positive proof but that info came from a Baltimore line person. It is really not important these days. If you wouldn't mind I would like to add your tags info to my list. I can be reached directly at [email protected]. Take care Andy
A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more!