Need Help With This PLZ

I am changing or tring to change clutch on 96 mustand with v6 and have tranny removed and ting to get the bellhousing off but there is 2 stripped bolts holding it in have tried using an extractor set but can not get a good enough bite on bolts need help cant do it plz any suggestion would be greatly appreiciated:bang:
 
Yeah, I think specification on whether it's the threads or the top of the bolt that strips would help. I would however try this first, take some WD-40 or other penetrating lube like PB blaster etc....spray it heavily around the bolt let it sit for 10-15 minutes and try and take them off. If it's the top of the bolt, using a vice grip or something similiar would help, if not try a breaker bar if you haven't already. If it's the threads that are strip, then best is to drill it out or if everything else isn't working. Don't drill unless you eliminated other possibilities.
 
I would like to thank everyone for input

i would like to thank all of you that replyed to my message i finally got them off it was the head of the bolt sorry didnt say that before but had to cut the heads of with saws all and know got it done and wife back on road in her mustang thank you everybody next hobby putting on a dual exhaust for her !!!!!!:D :hail2: