Originally Posted by fq06

Instead of buying a new bone, replace the pins. I think the Mugen pins are the same size, I have some but haven't tried it yet as their not worn.

Done it a ton of times on my Mugen, you just get a small socket and put it on one side of the bone and put it in a vice. Turn the vice down and the pin will push out till you get it flush with the bone.
Now turn the vice back out and put the new pin on the old pin that's flush with the socket still in place and crank down again. The new pin will push the old pin the rest of the way out and you have a fresh pin ready to go
Hope I explained that ok