Parts such as the Rear Swinging Arm (model Z): Nut, Lower Lh, Washer, Spring,propeller Shaft, Nut are included in the Gs1100g 1982 (z) Usa (e03) Rear Swinging Arm (model Z) parts fiche.
Of all the components used in this assembly the Swing Arm Set,rear (b is the most expensive.