GW5 ✓ Factory-verified

Chevrolet · Regular Production Option

Rear Axle - 2.73 Ratio (Includes Canada)

Years 1963–79, 2009, 2015 Models 3 Factory citations 2

Query this via API →

Also described as 2.73 axle ratioAxle, transaxle final drive, 3.16 ratio

Also documented for BuickCadillacGMCSaturn

Documented applications

Chevelle / El Camino →

• 1970, 1972 ● Confirmed

  footnote-flagged in source (Canada/export, build-sheet/tag-only, documentation-only, or package base engine not reported as an option — see chevellestuff legend)

Impala / Full-Size →

• 1963–70s (varies) ● Confirmed

Traverse — First generation (2009–2017) →

• 2009, 2015 ✓ Factory-verified

  the 2015 guide reads axle, 3.16 ratio.

  ⛭ GM factory document — 2009 chevrolet traverse rpo code list, p.1.

  ⛭ GM factory document — 2015 chevrolet traverse fleet order guide wayback, p.3.

This page aggregates every documented appearance of GW5 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.