Sales package, sport equipment

Years 1990, 1998–00 Models 4 Factory citations 8

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Also documented for Cadillac Chevrolet Pontiac

Documented applications

Safari — First generation (1985–1994)

1990 Factory-verified

air dam with fog lamps, sport suspension, sport steering wheel, color-keyed bumpers, wide black body side molding and grille with red striping; requires ZY6 paint and a 3.42 or 3.73 axle; not with YC7; shared M-body code; cited from the joint Astro/Safari pages of the Astro kits.

GM Heritage factory kit — 1990 Chevrolet Astro Van, p.8.

Sierra — GMT400 (1988–2000)

1998–2000 Factory-verified

GM factory document — 1998 gmc gmc c pickup 2wd rpo code list, p.1.
GM factory document — 1999 gmc gmc c pickup 2wd rpo code list, p.1.
GM factory document — 2000 gmc gmc c pickup 2wd rpo code list, p.1.

Suburban — GMT400 (1992–1999)

1998–1999 Factory-verified

GM factory document — 1998 gmc gmc suburban 2wd rpo code list, p.1.
GM factory document — 1999 gmc gmc suburban 2wd rpo code list, p.1.

Yukon — GMT400 (1992–1999)

1998–1999 Factory-verified

GM factory document — 1998 gmc yukon 2wd rpo code list, p.1.
GM factory document — 1999 gmc yukon 2wd rpo code list, p.1.

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