Tire, spare, 8.75R-16.5/C, highway, steel belted radial, blackwall

Years 1983–84, 1986–88 Models 1 Factory citations 5

Also documented for Chevrolet

Documented applications

Vandura and Rally — Second generation G-series (1983–1996)

1983, 1984, 1986–1988 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.9.
GM Heritage factory kit — 1985 Chevrolet G Van, p.16.
GM Heritage factory kit — 1986 Chevrolet G Van, p.62.
GM Heritage factory kit — 1987 Chevrolet G Van, p.17.
GM Heritage factory kit — 1988 Chevrolet Vandura, p.13.

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