Axle, rear, performance ratio

Years 1963–04 Models 13 Factory citations 59

Also described as 3.08:1 rear axleHigh-altitude axle ratio (1975–77) / performance ratio (1978–81)Rear Axle - 3.08:1 RatioPerformance Axle Ratio3.08 axle ratioRear axle - 3.08 ratioRear axle - 3.08 ratio (Performance / High Altitude)Axle, performance ratio

Also documented for GMC Pontiac

Documented applications

Camaro

1968–1969 Factory-verified

GM Heritage factory kit — 1969 Chevrolet Camaro, p.45.
1975–1981 Factory-verified

meaning changed mid-generation

GM Heritage factory kit — 1975 Chevrolet Camaro, p.9.
GM Heritage factory kit — 1981 Chevrolet Camaro, p.45.

Chevelle / El Camino

1967–1969, 1971 Factory-verified

GM Heritage factory kit — 1967 Chevrolet Chevelle, p.38.
GM Heritage factory kit — 1969 Chevrolet El Camino, p.55.

Corvette (C3)

1981 Factory-verified

$20.00; 2,400 built

GM Heritage factory kit — 1981 Chevrolet Corvette, p.5.

Impala / Full-Size

1963–70s (varies) Confirmed

Nova / Chevy II

1967 Factory-verified

GM Heritage factory kit — 1967 Chevrolet Nova, p.8.
1969, 1975–1979 Factory-verified

GM Heritage factory kit — 1969 Chevrolet Nova, p.9.
GM Heritage factory kit — 1979 Chevrolet Nova, p.56.

Camaro — Gen 3 (1982–1992)

1982–1992 Factory-verified

GM Heritage factory kit — 1982 Chevrolet Camaro, p.35.
GM Heritage factory kit — 1983 Chevrolet Camaro, p.26.
GM Heritage factory kit — 1984 Chevrolet Camaro, p.3.
GM Heritage factory kit — 1985 Chevrolet Camaro, p.22.
GM Heritage factory kit — 1986 Chevrolet Camaro, p.22.
GM Heritage factory kit — 1987 Chevrolet Camaro, p.15.
GM Heritage factory kit — 1988 Chevrolet Camaro, p.30.
GM Heritage factory kit — 1989 Chevrolet Camaro, p.49.
GM Heritage factory kit — 1990 Chevrolet Camaro, p.36.
GM Heritage factory kit — 1991 Chevrolet Camaro, p.26.
GM Heritage factory kit — 1992 Chevrolet Camaro, p.86.

Camaro — Gen 4 (1993–2002)

1993 Factory-verified

1993 order guide: requires C60 air conditioning and QLC tires; includes an engine oil cooler

GM Heritage factory kit — 1993 Chevrolet Camaro, p.7.

Caprice — third generation, B-body (1983–1990)

1988, 1990 Factory-verified

the 1990 guide words it a 3.08 performance axle

GM Heritage factory kit — 1988 Chevrolet Caprice, p.22.
GM Heritage factory kit — 1990 Chevrolet Caprice, p.11.

Corvette — C4 (1984–1996)

1985–1996 Factory-verified

the 1993 options page (p.75) gives it a 3.07 ratio (2.73 on the convertible); with MX0 only (1991 p.12, 1994–1996 order guides); not with Z51 (1986 order guide p.110); 1991: requires KC4 and FX3 (convertible guide p.12), and Z07 with MX0 requires G92 (coupe guide p.10); 1993: requires FX3 (convertible guide p.97) or FX3 or Z07 (coupe guide p.99)

GM Heritage factory kit — 1985 Chevrolet Corvette, p.43.
GM Heritage factory kit — 1986 Chevrolet Corvette, p.80.
GM Heritage factory kit — 1987 Chevrolet Corvette, p.8.
GM Heritage factory kit — 1988 Chevrolet Corvette, p.32.
GM Heritage factory kit — 1989 Chevrolet Corvette, p.32.
GM Heritage factory kit — 1990 Chevrolet Corvette, p.14.
GM Heritage factory kit — 1991 Chevrolet Corvette, p.9.
GM Heritage factory kit — 1992 Chevrolet Corvette, p.32.
GM Heritage factory kit — 1993 Chevrolet Corvette, p.75.
GM Heritage factory kit — 1994 Chevrolet Corvette, p.63.
GM Heritage factory kit — 1995 Chevrolet Corvette, p.103.
GM Heritage factory kit — 1996 Chevrolet Corvette, p.62.

Corvette — C5 (1997–2004)

1997–2004 Factory-verified

the 1997 and 1998–1999 order guides call it the 3.15 performance ratio axle, not available with the MN6 manual transmission (1997: required with MX0)

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.
GM Heritage factory kit — 1997 Chevrolet Corvette, p.7.
GM Heritage factory kit — 1998 Chevrolet Corvette, p.8.
GM Heritage factory kit — 1999 Chevrolet Corvette, p.16.

El Camino — fifth generation (1983–1987)

1983–1987 Factory-verified

1984: not with LD5

GM Heritage factory kit — 1983 Chevrolet El Camino, p.5.
GM Heritage factory kit — 1984 Chevrolet El Camino, p.5.
GM Heritage factory kit — 1985 Chevrolet El Camino, p.11.
GM Heritage factory kit — 1986 Chevrolet El Camino, p.5.
GM Heritage factory kit — 1987 Chevrolet El Camino, p.45.

Malibu — fourth generation, A-body (1983)

1983 Factory-verified

requires LG4 or LF9

GM Heritage factory kit — 1983 Chevrolet Malibu, p.21.
GM Heritage factory kit — 1983 Chevrolet Malibu, p.23.

Monte Carlo — fourth generation (1983–1988)

1983–1988 Factory-verified

an optional higher axle ratio, 3.08 on the 1988 power-team chart; not on the SS; 1984: not with LD5; 1985 from the power-team chart

GM Heritage factory kit — 1983 Chevrolet Monte Carlo, p.34.
GM Heritage factory kit — 1984 Chevrolet Monte Carlo, p.32.
GM Heritage factory kit — 1985 Chevrolet Monte Carlo, p.29.
GM Heritage factory kit — 1986 Chevrolet Monte Carlo, p.32.
GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
GM Heritage factory kit — 1988 Chevrolet Monte Carlo, p.34.

This page aggregates every documented appearance of G92 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.