The most expensive part in this assembly is the Rear Arm Comp..
In this schematic the "Oil Seal" is used most often.
Parts such as the Rear Arm: Nut, U (4pm), Nut, Self-locking(3jf), Bolt, Flange(4jh), Bearing, Cylindrical(4pt) are included in the Xg250 2005 4d62 Austria 1d4d6-300e1 Rear Arm parts fiche.