On this parts fiche the Bolt,flange,8x27 is the most specified component.
This schematic depicts all components used in the Gl1500 Goldwing 1988 (j) Belgium / Kph Final Driven Gear partslist.
Parts such as the Final Driven Gear: O-ring,39.5x2.4, Cap, Tappet, Shim A,stop,pin, Retainer,brg. are included in the Gl1500 Goldwing 1988 (j) Belgium / Kph Final Driven Gear parts fiche.