What are the gear ratios of the Muncie M20 four-speed transmission?

The Muncie M20 is a wide-ratio four-speed with the following gear set: 2.52:1 first, 1.88:1 second, 1.46:1 third, and 1.00:1 fourth. The wide spacing between gears works well with the broad torque curves of American V8s, which is why the M20 has always been the right call for street driving, daily drivers, and period-correct muscle car restorations.

Additional ratio codes are available. Call 315-471-8141 or visit AutoGearSYR.com to find your match.

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