UCA bolts stuck rant

I am going to assume that, like me, the nuts came off and your problem is the bolt stuck inside the bushing sleeve. I may try heat as well, with a fan and water. Thanks for suggestions. Hopefully doesn't burn up anything I am not replacing. I am going to paint the whole car soon anyway. back to original color

Exactly the same problem..I spent a week on them until Rusty convinced me to use the heat wrench and all four bolts were out in less than an hour. The propane torch is easy to control, you can get them from harbor freight, northern tool..ETC
I was a little apprehensive at first.. but it works where nothing else would.