On this parts fiche the Bolt is the most specified component.
Some items from this specific schematic: Seal,oil(38x46x6), Shim(40x50x1.2), Shim Set,final Drive Gear, Washer(16x29x4).
Of all the components that make up this Propeller Shaft/final Drive Gear (vzr1800z L2 E03) the Washer has the lowest price.