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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    G-91 Confirmed

    Oldsmobile · Regular Production Option

    Performance rear axle — 3.23 ratio

    Years 1970 Models 1

    Documented applications

    Full-Size 88 / 98
    • 1970 Confirmed

      350 CID engines only; trailer 1000–3500 lb

      Grade note: confirmed [HK: oldsmobile/1970_Oldsmobile_442_Info_Kit.txt p.235]

    This page aggregates every documented appearance of G-91 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.