Dealing with broken pinch bolt on rear strut
It seems that the pinch bolt head shearing off is just part of the job for most when it comes to changing the rear struts. I just wanted to post up how I dealt with it to help anyone else that runs into this. If I realized how to proceed when it happened, I would have saved myself lots of work and down time.
Get out the trusty cut off tool and cut the bolt in half; attack it where the spindle is split where you are supposed to hammer in a center punch or wedge of some sort (no need for anything jammed in there while cutting). Once it is just about sliced through, use a screw driver and pop out the non threaded half of the bolt.
Now that that is out of the way you will want a set of cobalt drill bits and also in particular a 25/64" bit. First use that size or close to it and insert through the now empty hole in the one side of the spindle, using it as a guide to get a nice centered start on the remains of the bolt. Then you can move back down to a reasonable size to drill through and move progressively back up to the 25/64" which should finish it off. Then replace with an appropriately sized bolt and nut. That's it, then you should never have to deal with that BS again with the bolt and nut; if it breaks again just knock it out of there.
This way there is no need to remove the spindle to use a drill press. For me I feel that would have been darn near impossible without cutting everything apart.