Transmission, manual, 4 speed, provisions

Years 1982, 1984–86 Models 2 Factory citations 2

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Also described as Transmission, manual 4 speed

Also documented for Chevrolet GMC

Documented applications

Fiero (1984–1988)

1984–1986 Single-source

merchandised order code; years from the OSG; the rparts and Halderman lists agree

Firebird — Third generation (1982–1992)

1982, 1984 Factory-verified

Wikipedia names a Borg-Warner 4 speed with the LG4 in 1982; Firebird years: Wikipedia 1982; thirdgen.org powertrain tables 1982, 1984; shared F-body code; cited from the Camaro kits

GM Heritage factory kit — 1982 Chevrolet Camaro, p.35.
GM Heritage factory kit — 1984 Chevrolet Camaro, p.5.

This page aggregates every documented appearance of MM4 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.