Unhappy buyer .What to do ???

I didnt post the buyers name on this thread ,because i felt that would not help matters.He sent me another pm today and said he read this thread and all of your opinons ,but still thinks i should send him $75.00 -$100.00 for a new set of gears.If he sends me another pm about it im gunna post his name on this thread.My patience has worn thin with this deal .As i said in my reply to your pm ,you got what i descirbed and no one held a gun to your head to buy it.If you want you can come forward in front of all these guys right now and give them your side of the story .If they think im in the wrong i will send out a Money Order tommorow ...