Two tools in one! This remover / installer is a must when servicing the crankshaft pulley on 1981 and newer Chrysler pulley on 1981 and newer Chrysler cars. It removes / installs the crank gear while the engine is still in the vehicle, and will not damage either the gear or crankshaft. For use on 1981-current 2.2L engines with 4-or 5-hole crank gear; 1986-current 2.5L engines 4-or 5-hole crank gear.