The Ball-steel,5/32 is the lowest priced item on this Transmission schematic.
Parts such as the Transmission: Gear,input Top,24t, Bushing,input Top Gea, Gear,input 4th,25t, Ball-steel,5/32 are included in the Zx750a3 Gpz750 1985 Usa California Canada Transmission parts fiche.
Check out any of the twenty-nine Transmission components enlisted.