Astro Pneumatic 78450 HD Harmonic Crank Pulley Puller, GM LS, Ford Coyote, Chrysler, Dodge, Jeep Compatible, Black. The Astro Pneumatic 78450 HD Harmonic Crank Pulley Puller is a heavy-duty tool engineered for removing harmonic balancers on GM LS, Ford Coyote, and various Chrysler, Dodge, and Jeep engines without damaging the pulley.
