The Rear Suspension assembly is constructed from several parts from which the Shock Absorber Assy, Rear is the most expensive.
Parts such as the Rear Suspension: Label, Warning, Nut, U (4pm), Washer 1, Bolt(3yf) are included in the Xt660r 2004 5vk1 Italy 1c5vk-300e3 Rear Suspension parts fiche.