Caterpillar Lift Trucks GC20N, GC25N, GC28N, GC30N, GC33N Factory Service & Shop Manual Price listed in US Dollar: $29.99 Leave this field blank Complete workshop & service manual with electrical wiring diagrams for Caterpillar Lift Trucks GC20N, GC25N, GC28N, GC30N, GC33N. Read more about Caterpillar Lift Trucks GC20N, GC25N, GC28N, GC30N, GC33N Factory Service & Shop Manual