A57 Factory-verified

GMC · Regular Production Option

Seat, passenger, auxiliary, folding

Years 1983–84, 1986, 1988–90, 1998–05 Models 2 Factory citations 14
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Also described as Seat, front auxiliary

Also documented for CadillacChevrolet

Documented applications

  • 1983, 1984, 1986, 1988–1990 Factory-verified

    stationary passenger seat including D20 sunshade; 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.17.
    GM Heritage factory kit — 1985 Chevrolet G Van, p.20.
    GM Heritage factory kit — 1986 Chevrolet G Van, p.66.
    GM Heritage factory kit — 1988 Chevrolet Vandura, p.23.
    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 A57 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.