On this parts fiche the Absorber,rr Hub Shock is the most specified component.
Parts such as the Rear Wheel (gt250n, X): Nut, Retainer,rr Sprocket Mtg, Panel,rear Hub, No Product Description Available are included in the Gt250e 1979 (n) (e01 E02 E04 E16 E17 E18 E21 E22 E24 E30 E39) Rear Wheel (gt250n, X) parts fiche.