Performance package, sport

Years 1998–99, 2003–09 Models 4 Factory citations 12

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Also documented for Chevrolet Oldsmobile Pontiac

Documented applications

Canyon — GMT355 (2004–2012)

2004–2009 Factory-verified

GM factory document — 2004 gmc canyon pickup 2wd rpo code list, p.1.
GM factory document — 2005 gmc canyon pickup 2wd rpo code list, p.1.
GM factory document — 2006 gmc canyon pickup 2wd rpo code list, p.1.
GM factory document — 2007 gmc canyon pickup 2wd rpo code list, p.1.
GM factory document — 2008 gmc canyon pickup 2wd rpo code list, p.1.
GM factory document — 2009 gmc canyon pickup 2wd rpo code list, p.1.

Jimmy — second generation (1995–2001)

1998, 1999 Factory-verified

GM factory document — 1998 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 1999 gmc jimmy 4wd rpo code list, p.1.

Sierra — GMT800 (1999–2007)

2003–2007 Factory-verified

GM factory document — 2003 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2007 gmc sierra classic 2wd rpo code list, p.1.

Sonoma — second generation (1994–2004)

1998–1999 Factory-verified

GM factory document — 1998 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 1999 gmc sonoma pickup 4wd rpo code list, p.1.

This page aggregates every documented appearance of B4U in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.