Check out any of the twenty-nine Track Suspension 1 components enlisted.
Parts such as the Track Suspension 1: Rear Axle Comp., Arm, Pivot 1, Shaft 1, Gusset are included in the Ys240tb Snow Blower 1990 Track Suspension 1 parts fiche.
The component with the lowest price in the TRACK SUSPENSION 1 schematic is the Circlip (604).