Molding package, custom

Years 1973–88 Models 4 Factory citations 13

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Also described as Custom molding package

Also documented for GMC

Documented applications

C/K Trucks

1973–82 Confirmed

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Blazer (full-size, K5) — Square body (1983–1991)

1983–1986 Factory-verified

includes B84 black body side moldings and wheel opening moldings; included with ZY3 and ZY5; the 1984 page prints YGI

GM Heritage factory kit — 1983 Chevrolet Blazer, p.10.
GM Heritage factory kit — 1984 Chevrolet Blazer RV Full Size, p.18.
GM Heritage factory kit — 1985 Chevrolet Blazer RV Full Size, p.12.
GM Heritage factory kit — 1986 Chevrolet Blazer, p.12.

C/K pickup — Square body (1983–1991)

1984–1987 Factory-verified

fleetside only; the kit pages also print YGI

GM Heritage factory kit — 1984 Chevrolet Truck, p.36.
GM Heritage factory kit — 1985 Chevrolet Truck, p.35.
GM Heritage factory kit — 1986 Chevrolet Truck, p.158.
GM Heritage factory kit — 1987 Chevrolet Truck, p.51.

Suburban — Square body (1983–1991)

1983–1986, 1988 Factory-verified

includes B84 black body side moldings, B96 wheel opening moldings and bright lamp trim; included with ZY3 and ZY5; 1983–1986 from the custom options feature pages; the 1987 pages name YG1 only in feature prose and as ZY3/ZY5 package content (the 1987 molding package line prints no code), so 1987 is left out; the kit pages also print YGI

GM Heritage factory kit — 1983 Chevrolet Suburban, p.25.
GM Heritage factory kit — 1984 Chevrolet Suburban, p.29.
GM Heritage factory kit — 1985 Chevrolet Suburban, p.29.
GM Heritage factory kit — 1986 Chevrolet Suburban, p.30.
GM Heritage factory kit — 1988 Chevrolet Suburban, p.18.

This page aggregates every documented appearance of YG1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.