Fuel Tank, 1982-1991 Chevy/GMC C/K Series Truck, Long Wheel Base, Conventional Cab, Large 1 5/8 in. Dia. Filler Pipe, 20-Gallon, Zinc-Nickel Steel, Silver Epoxy Finish, Replaces Part Number GM1B|JEGS Fuel Tank for 1982-1991 Chevy/GMC C/K Series Truck [20-Gallon].