When I broke an upper shock bolt during removal a couple weeks ago on my Cherokee, I ended up just drilling it out. I have never had any luck with screw/bolt extractors, they just break off too. I used left-handed drill bits, starting with a pretty small bit to get a center hole going. Then I enlarged the hole with 3 or 4 more successively bigger bits until there wasn't much of anything left in the threaded hole. After that I just pulled out the remaining chunks with the screwdriver/needle nose, cleaned up the threads, and was good to go.
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"None of you seem to understand. I'm not locked in here with you.. you're locked in here with me."
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