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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    M16 Factory-verified

    Chevrolet · Regular Production Option

    Warner T89B 3-speed manual (HD)

    Years 1965, 1967–72 Models 1 Factory citations 1

    Also described as Heavy-duty 3-speed manual

    Documented applications

    C/K Trucks
    • 1965 Factory-verified
      GM Heritage factory kit — 1965 Chevrolet Truck, p.19.
    • 1967–72 Single-source

      Code reused later for other units

    This page aggregates every documented appearance of M16 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.