Of all the components used in this assembly the Wheel Comp*rp121* is the most expensive.
In this schematic the "Spring Brake Shoe" is used most often.
Parts such as the Rear Wheel: Bolt,flange,5x25, Joint A,brake Arm, Spring Brake Shoe, Arm Comp,rr Brk are included in the Pk50m Wallaroo 1991 (m) Belgium / Sel Rear Wheel parts fiche.