I got the bolts out of the harmonic balancer on my 72 318 Dart,.. So now I had to find a puller that would work, the one from advance auto did not seem like it would work, so I went to harbor freight & got a harmonic balancer puller, but the bolts that come with it did not fit, So I had some bolts that seem like they was going to work, but may not, one gos in by hand, but other 2 do not!.. So what size of bolts do I need for the puller for a 318 harmonic balancer???