Axle, rear, 3.91 ratio

Years 2013–14 Models 1

Also documented for Cadillac Pontiac Saturn

Documented applications

Camaro — Gen 5 Zeta (2010–2015)

2013–2014 Confirmed

part of the 1LE package (GM Authority 2013 RPO changes); GM Authority 2014 RPO list

This page aggregates every documented appearance of GW1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.