A final say on removing the armor bolts.
I now have them all out. The solution turned out to be.
1 heat with Oxy until just under dark cherry red.
2 with a very close fitting driver in the slot strike heavily with a mash hammer
3 using a T bar and pipe extension over the handles one person levering one person holding the t bar down and striking it with a hammer push until it moves a bit
4 apply penatrant then tighten and loosen until it comes out.
we lost but a single bolt of the sixty or so removed.
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