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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-80 Factory-verified

    Oldsmobile · Regular Production Option

    Anti-Spin differential

    Years 1966–72 Models 3 Factory citations 3

    Also described as Anti-Spin (Limited Slip) differentialAnti-Spin differential n/a (FWD final drive 3.21)

    Documented applications

    Cutlass / 4-4-2
    • 1966–67 Confirmed

      —

    • 1968–69 Factory-verified

      Mandatory with W-32; 1969 factory service list: "Locking Type (Anti-Spin) Differential"

      GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
    • 1970 Factory-verified

      Mandatory when 3.42 or 3.91 ratio used. Factory list: "Limited Slip Type Differential - Anti-Spin Axle"

      GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.228.
    • 1971 Factory-verified

      Mandatory when 3.73 ratio used. Factory list: "Limited Slip Type Differential - Anti-Spin Axle"

      GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.222.
    Toronado
    • — Single-source

      Listed for clarity: not a Toronado option

      Grade note: n/a

    Related codes · mentioned in these notes

    W-32

    This page aggregates every documented appearance of G-80 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.