1963-1965 Muncie M20 M21 Manual Transmission Bearing Kit w/ Synchros (ZMBK117WS) shock-absorber unrestricted airflow for stronger acceleration

unrestricted airflow for stronger acceleration and consistent power throughout the RPM range

5 inches of lift to achieve a perfectly leveled stance

blacked-out look while the full LED setup delivers sequential turn signals and activation light sequence for a dramatic upgrade over stock

With a straightforward

Cold air design places the filter outside the engine bay for cooler intake charges

1963-1965 Muncie M20 M21 Manual Transmission Bearing Kit w/ Synchros (ZMBK117WS) shock-absorber unrestricted airflow for stronger accelerationDescription USA Standard Gear manufactures a full line of top quality transmission parts. You can count on USA Standard Gear to fulfill all your transmission, differential, and general replacement part needs.