BMC

BMC A-series 4-speed

From the Gearbox Wiki, the reference for people who still shift their own.

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BMC A-series 4-speed is a manual gearbox from BMC. The Society has 2 vehicles on file with it, 1 with a source we opened and 1 still leads.

Morris

Vehicle	Years	Shift pattern	Gearbox source	Members
Morris Minor Minor 1000 Series V (1098 cc) 1098 cc A-series, 4-speed with baulk-ring synchro ^[1]	1962-1971	4 speed, reverse bottom right	Corroborated
Morris Minor 948 cc, 4-speed ^{[citation needed]}	Years not confirmed	4 speed, reverse bottom right	Lead

Caveats and conflicts (1)

Memory only: BMC four-speed with 948 A-series engine. Nothing opened names the model.

Wikipedia. Wikipedia Morris Minor: 1098 cc Series V got 'a stronger gearbox fitted with baulk ring synchromesh'. [link]

Categories: Gearboxes | BMC

This page was last edited on November 11, 2026. Gearbox codes change by year, engine and market. Send a correction.