So, after draining the rear diff and the transfer case and refilling it came time to do the front diff.
Flashback: I had the diffs drained and refilled a previous time at a place that managed to eff it up by not torquing the filler plug all the way done (not to mention not using a new crush washer that I had given them). At the time, I put a new crush washer on and cursed them for having to clean gear oil off the skids. Didn't even think at the time of checking the drain plug, because there wasn't anything leaking from it.
Fast forward to today: The drain plug is either cross-threaded and stripped, or at the very least just stripped. What a PITA! Anyway, after successfully stripping it more, I get the dremel out. Cut a notch, get a chisel and hammer and start whacking away. Not even a bit of a budge.
Well, this is why they make screw extraction kits. So, I pull the screw extraction kit out along with the drill. Get into it and start the extractor. Seems to be biting pretty good until:
No idea what to do now. The diff isn't leaking or anything, I just wanted to replace the stripped drain plug with a new one.