Axle, rear, 2.73 ratio

Years 1970–84, 1992–93, 1996–05, 2008–09, 2014–19 Models 10 Factory citations 26

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Also described as 2.73:1 rear axleRear axle - 2.73 ratio (Performance)2.73 rear axleRear axle, 2.73 ratio

Also documented for Cadillac GMC Pontiac

Documented applications

Camaro

1970s Confirmed

Nova / Chevy II

1975 Single-source

C/K Trucks

1973–82 Confirmed

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Camaro — Gen 4 (1993–2002)

1996, 1998–2002 Factory-verified

the 1997 option weight page does not show it; the 1994 (p.64) and 1995 (p.115) option weight pages print the code as GUZ, an OCR reading of GU2 that the citation check does not accept, so those years are not claimed

GM factory document — 1998 chevrolet camaro rpo code list, p.1.
GM factory document — 1999 chevrolet camaro rpo code list, p.1.
GM factory document — 2000 chevrolet camaro rpo code list, p.1.
GM factory document — 2001 chevrolet camaro rpo code list, p.1.
GM factory document — 2002 chevrolet camaro rpo code list, p.1.
GM Heritage factory kit — 1996 Chevrolet Camaro, p.115.

C/K pickup — Square body (1983–1991)

1983, 1984 Factory-verified

power team charts only

GM Heritage factory kit — 1983 Chevrolet Truck, p.13.
GM Heritage factory kit — 1984 Chevrolet Truck, p.21.

Corvette — C4 (1984–1996)

1992–1993 Factory-verified

1989 is not claimed: only the preliminary 1989 engineering and product-direction pages print it

GM Heritage factory kit — 1992 Chevrolet Corvette, p.32.
GM Heritage factory kit — 1993 Chevrolet Corvette, p.17.

Corvette — C5 (1997–2004)

1997–2004 Factory-verified

GM factory document — 1997 chevrolet corvette rpo code list, p.1.
GM factory document — 1998 chevrolet corvette rpo code list, p.1.
GM factory document — 1999 chevrolet corvette rpo code list, p.1.
GM factory document — 2000 chevrolet corvette rpo code list, p.1.
GM factory document — 2001 chevrolet corvette rpo code list, p.1.
GM factory document — 2002 chevrolet corvette rpo code list, p.1.
GM factory document — 2003 chevrolet corvette rpo code list, p.1.
GM factory document — 2004 chevrolet corvette rpo code list, p.1.

Corvette — C6 (2005–2013)

2005, 2008–2009 Factory-verified

Included with MX0 in the 2005 order guide (HK p.99, p.105).

GM factory document — 2005 chevrolet corvette rpo code list, p.1.
GM factory document — 2008 chevrolet corvette rpo code list, p.1.
GM factory document — 2009 chevrolet corvette rpo code list, p.1.
GM Heritage factory kit — 2005 Chevrolet Corvette, p.22.

Corvette — C7 (2014–2019)

2014–2019 Factory-verified

only in: Stingray with Z51, Grand Sport; all trims: O; 2016, 2019: from GM order-guide copies (Corvette Action Center; 2019 also GM Authority)

GM factory document — 2014 chevrolet corvette stingray fleet order guide wayback, p.1.
GM factory document — 2015 chevrolet corvette fleet order guide wayback, p.13.
GM factory document — 2017 chevrolet corvette fleet order guide wayback, p.1.

S-10 pickup — First generation (1982–1993)

1993 Factory-verified

GM Heritage factory kit — 1993 Chevrolet S 10, p.6.

This page aggregates every documented appearance of GU2 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.