●Removes and Installs Fan Clutch Assemblies when Replacing Water Pumps ●Use to remove and Replace the thermostatic fan Assembly ●Wrench Sizes Include: 36-Millimeter and 58-Millimeter ●Use with a 1/2-Inch Square Drive and Torque Wrench ●Heavy-Duty Construction Allows for Strength and Durability ●Application: 4.9L E and F series truck engine 1984 to 1993 4.6L Ford modular engines 2.8L engines 1984-1987 2.9L and 3.0L engines 1988 to current