Trying to replace the harmonic balancer on a 6 cylinder, automatic. The rubber was completely gone so when i took the bolt and fan pulley off the outer edge of the balancer fell to the garage floor with quite a clatter. I rented a puller but have had absolutley no luck getting that thing off. I even stood on the wrench with my foot while my dad wedged the flywheel but the thing wouldn't budge. Any suggestions? Already have the center bolt off, that was easy. Can't get the balancer off. Thanks everyone.