Drum Brake Wheel Cylinder for Ford F-700 Chevy C70 GMC C6000 Rear Upper & Lower

• 1980-1982 GMC C6000 - Rear Upper & Lower; Bore: 1.625 In. • 1983-1985 GMC C6000 - Rear Upper & Lower; Bore: 1.125 In. Note-2: 1983-1985 Chevrolet C60 and GMC C6000-- Bore: 1.125 In. • 1983-1985 Chevrolet C70 - Rear Upper & Lower; Bore: 1.625 In.