The Washer(6.5x18x1) is the lowest priced item on this Rear Fender schematic.
This Rear Fender diagram displays the required parts for the Gs750b 1979 (n) Usa (e03) Rear Fender.
The Cushion is the most widely applied product in the GS750B 1979 (N) USA (E03) REAR FENDER ( two times ).