Parts such as the Rear Arm - Rear Cushion: Screw, Pan Head (n151), Cover, Thrust, Washer 278223160000, Shim,rear Arm are included in the Rd400 1978 Usa Rear Arm - Rear Cushion parts fiche.
twenty-two components are listed in the schematic for this Rd400 1978 Usa Rear Arm - Rear Cushion .