So I took it in to get a helicoil put in and the mechanic 'wouldn't touch it'. Of course that made me want to get it out by myself, and I did in about 5 minutes.
I stuck a hollow retention dowel down in the hole, welded the end of the stud to the retention dowel, and then just turned the dowel out.
I think I might have a new use for that box of roll pins I have laying around!


