UCA bolts stuck rant

To update this thread, I did get a torch and used about a full bottle of gas on one bolt. stink, smoke, pounding, still would not budge. Sawzall blade went through it pretty good. After making one cut and a little deeper inspection of the remaining half bolt, I found the frame rail mount for the UCA way too rotted out. Soooo...looking for some frame rails at this point. the whole upper part between the mounts is gone. It was so full of crap I couldn't tell until I picked it out. I haven't dug into the passenger side but my hopes are not too high. I will have to leave the rust and put it together to roll it on a trailer as I cant weld for **** and would like a pro job for repairs or replacements.