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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    MM5 / M75 Single-source

    Chevrolet · Regular Production Option

    5-speed manual w/ overdrive (Borg-Warner)

    Years 1975–77 Models 1

    Documented applications

    Vega / Monza
    • 1975–1977 Single-source

      offered on Cosworth/GT-era cars; RPO lettering not confirmed in sources consulted — treat code as unverified

    This page aggregates every documented appearance of MM5 / M75 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.