RPOARCHIVE
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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    G80 / G88 / G91 / G92 / G95 Single-source

    Buick · Regular Production Option

    Posi / performance axle / perf. axle w/ posi / perf. ratio / economy axle (RPO)

    Years 1970–76 Models 1

    Documented applications

    This page aggregates every documented appearance of G80 / G88 / G91 / G92 / G95 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.