With a quantity of two pieces, the Bolt-washer,6x12 is the most used part in the GEARSHIFT DRUM diagram.
Some items from this specific schematic: Spg,shift Drum St, Bolt-washer,6x12, Pin, Shift Return, Bolt,flange 6x14.
Of all the components used in this assembly the Drum Comp,gear Sh is the most expensive.