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engine date of production GMC Chevrolet CMP


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Engine prefix "TBRA" point towards a 1940 build date of the engine...so, it could well be the original engine for your truck. My Chev C8 is also from 1940 and has a "TRA" prefix, which seems to be a unique prefix for the 8cwt.


I can't help you with the info on the brass plate though.



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