Parts such as the Rear Wheel: Washer,26x14xt3, Arm Comp.,rr.brak, Cap,rr.wheel, Tire(michelin) are included in the Pk50 Wallaroo 1999 (x) Denmark / Mp Std Rear Wheel parts fiche.
In this schematic the "Spring Brake Shoe" is used most often.
The component with the lowest price in the REAR WHEEL schematic is the Nut A,fr.brk.adj..