Check out any of the fourteen Shift Shaft components enlisted.
On this parts fiche the Circlip is the most specified component.
Parts such as the Shift Shaft: Arandela Plana, Arandela Plana, Shift Shaft Assy, Plate, Stopper are included in the Dt50r 2006 2c2c France 1e2c2-300f2 Shift Shaft parts fiche.