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hemi43 · 07-03-2023, 02:20 PM

Used to work at GM. Those numbers are ID numbers for the assembly plant. All major assemblies will have the same number so that they know which parts go to which build sequence. Today it's done with bar codes on decals.
Like Keith said, we never cared about the VIN because that is only given after the vehicles is in it's final stages of assembly.

07-03-2023, 02:20 PM	#1
hemi43 Registered User Join Date: Mar 2015 Location: Ontario Canada Posts: 1,501	Re: Firewall number stamp Used to work at GM. Those numbers are ID numbers for the assembly plant. All major assemblies will have the same number so that they know which parts go to which build sequence. Today it's done with bar codes on decals. Like Keith said, we never cared about the VIN because that is only given after the vehicles is in it's final stages of assembly.