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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    R05 (RO5) Confirmed

    Chevrolet · Regular Production Option

    Dual rear wheels

    Years 1973–82 Models 1

    Documented applications

    Related codes · mentioned in these notes

    C30

    This page aggregates every documented appearance of R05 (RO5) in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.