sixty components are shown in this Yl2 1967 1968 Usa Rear Wheel exploded diagram.
The Washer(6a1) is the lowest priced item on this Rear Wheel schematic.
A sample from the products for the Rear Wheel include: Nut 102253820000, Spring Compression102253740000, Sprocket, Driven, Tire, Front (2.50-18-4pr) (94125-18020).