The most reasonably priced component used on the Ls650p Savage 2004 (l4) Usa (e03) Rear Swinging Arm is the Bolt.
A sample from the products for the Rear Swinging Arm include: Screw, Washer(14.5x29x2.3), Bearing(22x29x30), Spacer,rr Swgarm Pivot.
nineteen components are shown in this Ls650p Savage 2004 (l4) Usa (e03) Rear Swinging Arm exploded diagram.