Moroso 61741 - Balancer Installation Tool, BBC

Harmonic Balancer Installation Tool Engine w/0.5 in. -20 Threaded Hole In Crank Incl. Thrust Bearing/Protective Washer Harmonic Balancer Installation Tool, BBC, or any engine with a 1/2" -20 threaded hole in the crank • Uses a pilot stud, which keeps the harmonic balancer perpendicular to the crankshaft's centerline for a bind- free installation • Thrust bearing and protective washer allows the drive nut to rotate freely so the balancer is pressed on smoothly and evenly