- 1983, 1984, 1986, 1988, 1989 Factory-verified
1984 from the 1984 data book pages in the kit file labelled 1985.
GM Heritage factory kit — 1983 Chevrolet Vandura, p.18.GM Heritage factory kit — 1985 Chevrolet G Van, p.21.GM Heritage factory kit — 1986 Chevrolet G Van, p.67.GM Heritage factory kit — 1988 Chevrolet Vandura, p.24.GM Heritage factory kit — 1989 Chevrolet G Van, p.20.
D20 Factory-verified
Also documented for GMC
Documented applications
This page aggregates every documented appearance of D20 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.