ProForm 66515 Harmonic Balancer Installation Tool

Proform Harmonic Balancer Installation Tools are used for installing the harmonic balancer. They use a pilot stud, which keeps the harmonic balancer perpendicular to the crankshaft's centerline, for a bind-free installation. These tools have a thrust bearing and a protective washer which allows the drive nut to rotate freely so the balancer is pressed on smoothly and evenly.