Manual Muncie M20 Bearing Kit 1963-1965 4-Speed With Synchros USA Standard GearMuncie Model 20 M T Bearing Kit 63 65 4SPD w synchros . 1963 1965 4 Speed with Synchro's Model 20 MUNCIE Features and Benefits: 1963 1965 4 Speed with Synchro's Model 20 Muncie Details: AAP UDA 4: 70 Grade Type: Regular Application Summary: 1963 Buick Invicta 1964 1965 Buick Wildcat 1965 Buick Gran Sport 1963 1965 Buick Electra 1963 1964 Buick LeSabre 1963 1965 Buick Skylark 1963 1965 Buick Special 1965 Buick Sportwagon 1963 1965 Chevrolet Biscayne