Tire, rear, FR78-15/B, highway, fiberglass belted radial, blackwall

Years 1983–84, 1986 Models 1 Factory citations 3

Also documented for Chevrolet

Documented applications

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

1983, 1984, 1986 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.8.
GM Heritage factory kit — 1985 Chevrolet G Van, p.14.
GM Heritage factory kit — 1986 Chevrolet G Van, p.59.

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