Check out any of the twenty-three Shift Shaft components enlisted.
In this schematic the "Washer" is used most often.
Parts such as the Shift Shaft: Washer, Lock (4g0), Circlip(10y), Cover, Dust, Shift Lever Assy are included in the Xvs650 Xvs650c Vstar Custom 2003 (3) Usa California Shift Shaft parts fiche.