HERE IS A "PAIR" OF NEW "FRONT" WHEEL CYLINDERS FOR YOUR CHEVROLET GMC PICK UP "2 wheel drive". THESE 1-1/8" BORE WHEEL CYLINDERS FIT 1956 1957 CHEVY PICK UP 2 wheel drive. 1955 CHEVY TRUCK 1/2 TON 3100 3200 series and 3/4 TON 3400 3500 3700 but " NOT 3600 series " and 1 TON 3900 series but " NOT 3800 series".
