The Suzuki CHAIN CASE - SHOCK ABSORBER has fifteen products enlisted in the schematic.
Parts such as the Chain Case - Shock Absorber: Washer,lock, Washer, Bolt, Washer,lock are included in the Gs450e 1987 (h) United Kingdom South Africa Belgium (e02 E06 E21 Chain Case - Shock Absorber parts fiche.
On this parts fiche the Nut, Lower Lh is the most specified component.