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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    G50 Factory-verified

    GMC · Regular Production Option

    Springs, rear, heavy duty

    Years 1983–90 Models 2 Factory citations 11
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    Also described as Spring, rear, heavy duty

    Also documented for BuickChevroletOldsmobilePontiac

    Documented applications

    Sierra — Square body (1983–1991)
    • 1983–1987 Factory-verified

      shared platform code; cited from the square-body C/K pickup kits; 1983 from the GVWR chart; the kit pages also print G5O

      GM Heritage factory kit — 1983 Chevrolet Truck, p.21.
      GM Heritage factory kit — 1984 Chevrolet Truck, p.47.
      GM Heritage factory kit — 1985 Chevrolet Truck, p.45.
      GM Heritage factory kit — 1986 Chevrolet Truck, p.156.
      GM Heritage factory kit — 1987 Chevrolet Truck, p.60.
    Vandura and Rally — Second generation G-series (1983–1996)
    • 1983, 1984, 1986, 1988–1990 Factory-verified

      shared G-van platform code; cited from the Chevrolet G-Van kit

      GM Heritage factory kit — 1983 Chevrolet Vandura, p.17.
      GM Heritage factory kit — 1984 Chevrolet G Van, p.18.
      GM Heritage factory kit — 1986 Chevrolet G Van, p.28.
      GM Heritage factory kit — 1988 Chevrolet Vandura, p.23.
      GM Heritage factory kit — 1989 Chevrolet G Van, p.6.
      GM Heritage factory kit — 1990 Chevrolet G Van, p.8.

    This page aggregates every documented appearance of G50 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.