Removes and Installs the Hub Bearing Retaining Nut Found on Some GM GMT900 Platform Trucks. The socket has nine drive pins to fit the new style retaining nut found on 2-wheel and 4-wheel drive Cheyenne, Silverado, Escalade, Sierra and Avalanche trucks with 10.5" or 11.5" ring gear. Made from alloy steel. Use with 1/2" drive.