Harmonic Balancer Pulley Puller Set Adjustable 3-Jaw Puller Tool for Removing Harmonic Damper and Balancers Compatible with Chevy GM Chrysler Cadillac Ford ect. PRODUCT SIZE: This harmonic balancer puller kit has a 3-jaw puller for a firm and secure grab, a forcing screw fitted for 24 mm drive tools, and 4 forcing rods (3-7/8", 5-1/5", 6-1/3", 7-3/5") to satisfy your needs.