The Knuckle is made up of components including this Shaft Assy.,r.dri which is the most expensive.
Some items from this specific schematic: Dust Seal,42x54x7, Plate,fr.guard, Bolt,flange,8x18, Shaft Assy.,r.dri.
Of all the components that make up this Knuckle the Bolt,flange,8x16 has the lowest price.