The component with the lowest price in the TRANSMISSION schematic is the Circlip (604).
This schematic depicts all components used in the Tt250 Off Road 1980 (a) Usa Transmission partslist.
Parts such as the Transmission: Gear, 5th Wheel, Gear, 1st Wheel, Oil Seal (3y1), Drive Axle Assy are included in the Tt250 Off Road 1980 (a) Usa Transmission parts fiche.