Moroso 61741 Balancer Installation Tool, BBC

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