Axle, rear, high altitude ratio

Years 1963–79, 1983, 2015–16 Models 8 Factory citations 7

Also described as 4.10:1 (also 4.56/4.88 w/ COPO 9511) rear axleRear Axle - 4.10:1 Ratio4.10 axle ratioAxle, rear, 3.70 ratio

Also documented for GMC Pontiac

Documented applications

Camaro

1968–1969 Confirmed

4.56/4.88 required COPO 9511 in 69

Chevelle / El Camino

1969 Confirmed

Impala / Full-Size

1963–70s (varies) Confirmed

Camaro — Gen 3 (1982–1992)

1983 Factory-verified

GM Heritage factory kit — 1983 Chevrolet Camaro, p.35.

El Camino — fifth generation (1983–1987)

1983 Factory-verified

Only with NA6 and LC3

GM Heritage factory kit — 1983 Chevrolet El Camino, p.5.

Malibu — fourth generation, A-body (1983)

1983 Factory-verified

requires NA6 emissions; paired with LC3

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 Factory-verified

requires NA6 high altitude emissions

GM Heritage factory kit — 1983 Chevrolet Monte Carlo, p.30.

SS — single generation (2014–2017)

2015–2016 Factory-verified

O; included and only available with MN6; printed as new for 2015; GM's official 2015 SS RPO changes (GM Authority)

GM factory document — 2015 chevrolet ss fleet order guide wayback, p.6.
GM factory document — 2016 chevrolet ss fleet order guide wayback, p.4.

This page aggregates every documented appearance of G84 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.