MFM ✓ Factory-verified

Chevrolet · Regular Production Option

Transmission, manual, 5 speed, Y4M heavy duty, 1st gear 3.539, 5th gear 0.781

Years 2009 Models 1 Factory citations 1

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Also documented for Pontiac

Documented applications

Aveo — T250 (2009–2011) →

• 2009 ✓ Factory-verified
  ⛭ GM factory document — 2009 chevrolet aveo rpo code list, p.1.

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