Muncie synchronizer assembly fits all Muncie transmissions, 1963 - 1974, M20, M21 & M22.

Assembly includes:

• hub
• new slider - available in standard or torque lock
• synchronizer keys
• retaining springs
• 2 synchronizer rings

Assembly will work for the 1-2 or 3-4. Please specify whether you nee the 1-2 or 3-4 and we will send the correct configuration.

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The Gear Box Transmissions, Inc. * Phone 734-793-0727 * Fax 734-793-0729