Already removed the huge center bolt, i have a harmonic balancer puller although the supplied bolts are SAE threads so gonna get some new Metric, guessing 10x1.25 for them? thanks for the help, Ronjon

 

Replaced my HB a good while back using a free rental kit from one of the box stores. Worked fine except for installing the new HB - the bolt in the kit for pulling the HB on was short, so I purchased some metric all-threads and nuts to match and that worked just fine. Cut the all-threads an inch or two longer to assure you have enough.