Harmonic balancer

[Tercbeater]

Well my 86 sr5 developed a knock recently and I noticed the harmonic balancer was wobbling. I pulled it off and the key way on the balancer is worn out bad which also screwed up the woodruff key. I bought on from auto parts warehouse but unfortunately it is not the right one. Anyone have any extras laying around they'd be willing to get rid of? It's a factory ps and a/c car and I would like to retain that.