In this schematic the "Roller(15x13)" is used most often. Parts such as the Starter Clutch: Pin(7.4x13x56), Washer(13.3x25x0.85), Bearing(25x29x9.9), Shim,starter Clutch Hub are included in the Gs425l 1979 (n) Usa (e03) Starter Clutch parts fiche.