The lowest price component in this Swingarm / Chain Case parts-list fiche is the Nut,hex.,8mm.
Parts such as the Swingarm / Chain Case: Chain Set, Drive, Stopper,chain Adj, Case,drive Chain, Fork Pivot Bolt are included in the Cb750sc Nighthawk 750 1983 (d) Usa Swingarm / Chain Case parts fiche.
The Swingarm / Chain Case is made up of components including this Fork,rr.*nh-1* which is the most expensive.