Guides
Practical identification and owner guides
The first published guide is a multi-make checklist you can take to a car. More decoder charts, buyer’s inspection notes, and parts-sourcing guides will be added over time. Nothing here is an appraisal, and a decode is not a certificate of authenticity.
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Multi-make numbers-matching and identification checklist
Parallel GM, Ford, and Mopar sections covering VIN location and format, body or fender tags, engine and transmission stamps, date codes, hidden stamps, paperwork, and red flags. Sources are cited throughout.