So far I have not messed anything up.

I agree part of it is the battle of wills and I hate losing or unloosing in this case. I am fine with winning slowly and deliberately though.

I was planning on re-CCH'ing this receiver and assumed the bushings would need to be out to do so. Otherwise I could leave them in place but also figured at some time in the future if a pin wore or broke (these are 121 years old by this time) I would have to remove anyway so seems like easier earlier than later.

Did I mention I hate losing.

Thanks for the input.