Bolt on Subframe will not come out?

Hello all, I have undertaken a project on my car listed above GT, and I need to remove the power steering rack to reach some bolts. I have thrown everything at this bolt holding the rack to the subframe, and it will not budge. I have tried to use an impact, pb blaster, and my 30-inch breaker bar, and the bolt has not budged. The car really isn't rusty, and there isn't much rust on the bolt, so I am wondering if it's cross threaded or something? Any help would be appreciated.