This Rear Case diagram displays the required parts for the Gl1500i Goldwing Interstate 1992 (n) Usa California Rear Case.
In this schematic the "Bolt,flange 8x45" is used most often.
A sample from the products for the Rear Case include: Strainer Cap,scav, Holder,final Shaf, Bolt,flange,6x16, Tube,breather.