The Pin is the lowest priced item on this Secondary Drive Gear (model F) schematic.
Parts such as the Secondary Drive Gear (model F): Shim,secondary Driven Housing, O Ring(d:2.1,id:66.2), Shim,secondary Drive, Nut are included in the Vs750glp 1991 (m) (e01 E02 E04 E17 E21 E22 E25 E34 E39) Secondary Drive Gear (model F) parts fiche.
In this schematic the "Bolt" is used most often.