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Prewar, Advance-Design, Task Force, C/K and Squarebody decoding
Classic Chevrolet Truck VIN Decoder and Registry
Classic Chevrolet trucks changed serial formats as often as the passenger cars. PetrolJunky treats prewar commercial series, Advance-Design, Task Force, first-generation C/K, Action Line and Rounded Line/Squarebody VINs as separate historical systems rather than one generic C10 parser.
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MODEL DECODERClassic Chevrolet Trucks1932–1980 reviewed light-truck systems
Universal VIN Input
Decode from this page
This page explains Classic Chevrolet Trucks, but the input accepts every PetrolJunky-supported identifier.
Decoder Reference
What this identifier can tell you
1932–1946 reviewed prewar/light-commercial systems1947–1955 Advance-Design1955 second-series through 1959 Task Force1960–1966 first-generation C/K with both VIN layouts1967–1972 Action Line1973–1980 Squarebody/Rounded Line
Prewar and Advance-Design trucks use series and month codes
Reviewed 1930s/early-1940s truck car-number plates identify series, plant, month and sequence. After civilian production resumes, 1947–1952 Advance-Design serials use year/series symbols such as GP for a 1949 3100 family, again combined with assembly month and plant.
Task Force and 1960s C/K formats change position order
1955–1959 trucks use their own series/year identifiers. Chevrolet then adopted a new 1960–1964 serial layout with the model year first, and changed the field order again for 1965–1966 trucks such as C1446S220252. PetrolJunky now recognizes both instead of incorrectly applying one layout to the whole generation.
1967–1980 adds engine and truck-family detail
Action Line VINs encode drive/chassis family, cylinder family, weight series, body, year, plant and sequence. The 1973–1980 format evolves again and adds engine codes used by C/K pickups, Suburban, Blazer and G vans. Exact bed length, trim and option packages are left to model/body plates and RPO documentation when the VIN does not prove them.
Common Questions
Chevrolet Decoder FAQ
Chevrolet changed the truck serial field order. The 1960–1964 format begins with model year, while the reviewed 1965–1966 format places the year after the model/body portion.
Public Registry
