Parts such as the Rear Cushion Lever: Bearing(17x24x26), Absorber Assembly,rear Shock, Rod,rr Cushion Lever, Bracket,rr Shock Absorber Up are included in the Gsxr600 1998 (w) Usa (e03) Rear Cushion Lever parts fiche.
In this schematic the "Bearing(17x24x20)" is used most often.