UPDATE
!I have added all pictures to the first post but not the information!
So I picked this big boy up a few weeks ago and have been drooling over some of the restoration projects I have seen on here. I decided it was time to sit down and start the cleaning project before I start electrolysis. I started off removing the dynamic jaw only had one minor spot to file down. Next I removed the main nut. Next I planned on removing the collar holding the lead screw in place. Here's where I ran into problems. The split nut seems to have a few punches around it to hold the retaining screw in place. (see pics below) The screw already looks like someone tried to remove it with no success. My options are leaving it, cleaning it as much as possible and going through electrolysis as it sits or trying to drill out the screw and tapping out a new on on the other side.
Anyways heres a few pics more to follow shortly.
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