The Track Drive 1 is made up of components including this Axle, Front which is the most expensive.
Parts such as the Track Drive 1: Nut, Hexagon (8f3), Bearing, Wheel, Sprocket, Ybs67-8 Washer, Spring are included in the Ec340e 1981 Track Drive 1 parts fiche.
The Yamaha TRACK DRIVE 1 has ten products enlisted in the schematic.