Parts such as the Exhaust: Gasket, Exhaust Pipe (nas), Bolt (663), Screw, Bind, Nut Spring 116283170100 are included in the Gt80 1975 Usa Exhaust parts fiche.
With four applications this Screw, Bind is the most specified part.
The most reasonably priced component used on the Gt80 1975 Usa Exhaust is the Bolt (682).