I'll have to remember to use a screw driver and dremel. When I broke my moms armrest I had used a chizel and hammer to slowly turn the bolt out.oh, snap!!! i had too. take a good bolt with you find a nut that fits it, you now know the threads size. then find that threaded bolt thats close in length.
if the old one is flush to the tranny, take a dremel and cut a slot on the end of the broken bolt, then use a flat head screw driver to remove it. or drill and use a extractor.