On this parts fiche the Bush,rear Cushion is the most specified component.
A sample from the products for the Rear Shock Absorber include: Label A, Screw,special6x10, Collar Rr Cush, Bush,rear Cushion.
This Rear Shock Absorber diagram displays the required parts for the Vt1100c3 Shadow Aero 1999 (x) Usa Rear Shock Absorber.