It seems that you may have enough material to use a pair of vicegrips, but after soaking the studs for a couple of days with PBB and if you still get a stubborn stud, before risking snapping the remaining part off, you may want to use a butane small torch on the stud prior of the vicegrips.
Good luck!
Last edited by Gilles; 01-13-2018 at 06:44 PM.
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