This Primary Driven Gear Comp. is the most expensive of the items that make up this Clutch Gt80e/gt80e~009161/gt80f assembly.
With four applications this Bolt, Hexagon With Washer(353) is the most specified part.
This schematic depicts all components used in the Gt80 1978 Usa / E-009161 Clutch Gt80e/gt80e~009161/gt80f partslist.