The most reasonably priced component used on the Gs750b 1979 (n) Usa (e03) Muffler is the Lock Washer.
Some items from this specific schematic: Pipe,exhaust Ctr, Washer, Body,muffler, Lock Washer.
This Muffler diagram displays the required parts for the Gs750b 1979 (n) Usa (e03) Muffler.