The seventeen Gs1000 1980 (t) (e01 E02 E22 E24) Rear Swinging Arm component parts are all listed in this schematic.
Parts such as the Rear Swinging Arm: Washer, Bolt, Bearing(25x33x30), Spacer,rr Swgarm Pivot are included in the Gs1000 1980 (t) (e01 E02 E22 E24) Rear Swinging Arm parts fiche.
The Pin 20x20 is the cheapest item from this partsfiche.