The lowest price component in this Gear Shifting parts-list fiche is the Washer(12.5x20x1).
Of all the components used in this assembly the Cam,gear Shift is the most expensive.
Parts such as the Gear Shifting: Washer (40x49x1), Nut, Nut, O-ring (d:2.4 Id:26.2) are included in the Gr650 1984 (e) (e01 E04 E15 E16 E17 E21 E22 E24 E26 E34 E39) Gear Shifting parts fiche.