This 2-in-1 impact tool features a 2-sided flange which fit domestic automobiles including GM, Chrysler and Ford, and install Saginaw, Thompson and Ford C-2 power pumps with grooved assemblies.

Works on alternator pulley the following grooved hub diameters:

1-1/8"(28mm), 1-1/4"(32mm), 1-5/16"(34mm),and 1-3/8"(35mm).