DORMAN Rear Drum Brake Wheel Cylinder | For 1989-1991 CHEVROLET R3500

1989 Chevrolet R3500 Bore: 1.1875 In.; w/Dual Rear Wheels (DRW); Position: Rear;. 1990 Chevrolet R3500 Bore: 1.1875 In.; w/Dual Rear Wheels (DRW); Position: Rear;. 1991 Chevrolet R3500 Bore: 1.1875 In.; w/Dual Rear Wheels (DRW); Position: Rear;.