Axle, wide track

Years 1996–01, 2003–09, 2014, 2023, 2025–27 Models 9 Factory citations 31

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Also described as Rear axle, wide trackAxle, rear, wide-track

Also documented for Cadillac GMC

Documented applications

C/K pickup — GMT400 (1988–2000)

1998–2000 Factory-verified

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

Motor Home chassis (1983–1998)

1996–1998 Factory-verified

requires 006 ratio; not available on CP31132, CP31432 or CP32012

GM Heritage factory kit — 1996 Chevrolet Motorhome, p.8.
GM Heritage factory kit — 1997 Chevrolet Motorhome, p.4.
GM Heritage factory kit — 1998 Chevrolet Motorhome, p.5.

Silverado — GMT800 (1999–2007)

2000–2001, 2003–2007 Factory-verified

2005–2007: heavy-duty models only (GM’s HD list)

GM factory document — 2000 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2000 Chevrolet Truck and Silverado, p.56.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.59.

Silverado — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.

Silverado HD — GMT800 (2001–2007)

2001, 2003–2007 Factory-verified

GM factory document — 2001 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.

Silverado HD — GMT900 (2007–2014)

2007–2009, 2014 Factory-verified

the 2014 guide adds that it widens the axle by 8 inches to 74 inches

GM factory document — 2007 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2014 chevrolet silverado 3500hd cc fleet order guide wayback, p.4.

Silverado HD (T1XX, 2020–2027)

2023, 2025–2027 Factory-verified

only in: 3500 HD chassis cab

GM factory document — 2023 chevrolet 23silverado 2500 3500hd electrical body builder sm en us 2022oct12, p.11.
GM factory document — 2025 chevrolet silverado 3500 hd cc fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 3500 hd cc fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 3500 hd cc fleet order guide rpo codes, p.1.

Suburban — GMT400 (1992–1999)

1998–1999 Factory-verified

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

Suburban — GMT800 (2000–2006)

2000–2001 Factory-verified

GM factory document — 2000 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2001 chevrolet chevy suburban 2wd rpo code list, p.1.
GM Heritage factory kit — 2000 Chevrolet Suburban, p.47.

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