Features: 1.APPLICATION: Differential Bearing removal tool, used to easily remove a wide range of gears, pulleys, or other parts that have tapped holes. 2.HIGH QUALITY: Superior 42CrMo steel material with great durability, black Oxide finish resisting rust and corrosion to long-lasting service your pulley. 3.REPLACEMENT: Similar to Ford D80L-522-A and 303-D025 Large Gear and Pulley remover. Accomodates any cap screws up to 1/2" diameter 4.DESCREBTION: Puller spread from 2" to 7-3/4", the block is 8-1/4" wide, and forcing screw is 3/4" - 16 x 11-5/8" long. .