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

    GMC · Regular Production Option

    Tire, front, 8.75-16.5/E, highway, nylon, blackwall

    Years 1983–84, 1986–90 Models 1 Factory citations 7
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    Also documented for Chevrolet

    Documented applications

    Vandura and Rally — Second generation G-series (1983–1996)
    • 1983, 1984, 1986–1990 Factory-verified

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

      GM Heritage factory kit — 1983 Chevrolet Vandura, p.9.
      GM Heritage factory kit — 1984 Chevrolet G Van, p.11.
      GM Heritage factory kit — 1986 Chevrolet G Van, p.20.
      GM Heritage factory kit — 1987 Chevrolet G Van, p.17.
      GM Heritage factory kit — 1988 Chevrolet Vandura, p.13.
      GM Heritage factory kit — 1989 Chevrolet G Van, p.35.
      GM Heritage factory kit — 1990 Chevrolet G Van, p.9.

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