Some items from this specific schematic: Circlip, Bolt,stud, Bearing(28x68x18), Shim Set,final Drive Gear.
The Propeller Shaft/final Drive Gear is made up of components including this Gear & Case Set,final Bevel which is the most expensive.
Of all the components that make up this Propeller Shaft/final Drive Gear the Screw has the lowest price.