The component with the lowest price in the FINAL SHAFT schematic is the Circlip, 22m/m.
Parts such as the Final Shaft: Nut,special,22mm, Nut, Lock, 30mm, Lifter,final Damp, B/brg Rad N/com are included in the Gl1500 Goldwing 1990 (l) Germany Final Shaft parts fiche.
The Final Shaft assembly is constructed from several parts from which the Shaft,final Gear is the most expensive.