Stuck bolt and cannot heat it up!

I am trying to replace my cv joint on the drivers side of my hyundai sonata. But, to do so i need to disconnect the rotor and caliper part from the lower ball joint, but a lower ball joint bolt is stuck and i cant even get it out with an air powered impact wrench and it's very difficult to use a breaker bar on it to it off due to the socket sliding of the bolt and slightly stripping the bolt. And the rubber boot of my lower ball joint is too close to the bolt for me to heat up the surrounding area for it to expand. Any tips on what to do to get it knocked out? I've been drenching it in kroil praying that, that will work. But, i see no progress so far. any help would be a life saver!