GT4 ✓ Factory-verified

Pontiac · Regular Production Option

Axle, rear, 3.73 ratio

Years 2007–09 Models 1 Factory citations 2

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Also documented for BuickCadillacChevroletGMCHummerOldsmobileSaturn

Documented applications

Solstice — Kappa (2006–2009) →

• 2007–2009 ✓ Factory-verified
  ⛭ GM factory document — 2007 pontiac solstice rpo code list, p.1.

  ⛭ GM factory document — 2009 pontiac solstice rpo code list, p.1.

This page aggregates every documented appearance of GT4 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.