You could always get a tough drill bit and drill them out. I had to use a die-grinder to get the axle bolt off my driveshaft when I changed it on my '93 Accord. Some of those old bolts are on so damn tight and have been there so long I swear they have actually formed chemical bonds and become "One" metal together. Anyway, just make sure not to screw anything up, like drilling too far and jacking up your hub. And for future jobs, get an impact screwdriver. It might be too late now if you have stripped the turd out of them.