The Chevrolet Bison (and similar GMC General) were heavy-duty Class 8 trucks made by General Motors between 1977 and 1988. The Bison & General were both conventional rigs. Diesel engine choices included Caterpillar, Cummins and Detroit Diesel powerplants.
The Chevrolet Bison was introduced in 1976, and available from 1977-1980[1] . Chevrolet exited the Heavy Duty Class 8 Truck Market in 1980.