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This Yukon Gear bearing kit is made for 1963–1965 Muncie Model 20 four‑speed manual transmissions and includes bearings and synchros needed for a factory-style rebuild. Supplied components support proper gear engagement and internal clearances, providing a practical replacement set for restorations or transmission overhauls on vehicles equipped with the Model 20 Muncie four-speed.
Yukon Gear 63-65 Muncie M20/M21 M/T w/SynchroS Bearing Kit
