A12 Factory-verified

GMC · Regular Production Option

Window, rear, stationary, back door

Years 1983–84, 1986–90, 1998–10, 2014–18, 2022–27 Models 4 Factory citations 34
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Also described as Window, rear stationary, back doorWindow, rear door, stationaryWindow, rear door, fixed

Also documented for Chevrolet

Documented applications

  • 1983, 1984, 1986–1990 Factory-verified

    1984 from the February 1984 data book pages in the mislabelled G-Van kit file; shared G-van platform code; cited from the Chevrolet G-Van kit

    GM Heritage factory kit — 1983 Chevrolet Vandura, p.16.
    GM Heritage factory kit — 1985 Chevrolet G Van, p.19.
    GM Heritage factory kit — 1986 Chevrolet G Van, p.65.
    GM Heritage factory kit — 1987 Chevrolet G Van, p.22.
    GM Heritage factory kit — 1988 Chevrolet Vandura, p.22.
    GM Heritage factory kit — 1989 Chevrolet G Van, p.16.
    GM Heritage factory kit — 1990 Chevrolet G Van, p.16.

This page aggregates every documented appearance of A12 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.