- 1984 Factory-verified
cutaway and Hi-Cube vans; the 1989 weight table prints the code without a size, so 1989 is not claimed; 1984 from the 1984 data book pages in the kit file labelled 1985.
GM Heritage factory kit — 1985 Chevrolet G Van, p.83.
YSD Factory-verified
Also documented for GMC
Documented applications
This page aggregates every documented appearance of YSD in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.