We always knew we had the best Harmonic Balancer Installer available but we found a way to make it even better. We eliminated the through bolt and the subsequent hole in the back of each adapter thus adding even more strength and reliability. With eight interchangeable adapters our universal kit fits virtually any engine known to man. It uses a thrust bearing to gently ?squeeze? the harmonic balancer onto the crank snout on even the tightest of press fit applications. Best of all even if you do manage to break one of the included adapters replacement parts are readily available.