Harmonic balancer?

mocar said

so should there have been a ati on in the first place seeing I have a cast crank, and the ati is for a neutral balance/steel crank??

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Depends on how the balance job was done.

Bite the bullet and buy the correct pullies. They are out there. Better off with a good dampener and needing to buy pullies than to put a stock one on just to use stock pullies.