Heating brake shoe anchor bolt?

I'm on my last wheel and have met up with one stubborn brake shoe anchor bolt that is rusted to its sleeve in the backer plate. I have backed off the nut and soaked the bolt on both sides with PB Blaster. I may have to invest in a new pipe wrench as mine is old and won't bite the bolt head very well. It still isn't budging. Has anyone every had success with heating, then cooling a frozen anchor bolt to free it from the backer plate sleeve?

Thanks!

Heat to red and loosen while red hot. Use impact wrench if possible....................Bob

I have had the most success heating to red hot then quench. Since you cannot put it in a bucket of water squirt cold water on it. you will be able to take it apart with your fingers.

I had to use acetylene torch to remove one of mine on my 52 Plymouth. I had mushroomed the end trying to pound it out. I finally heated it red hot and then put vice grips on the head and twisted as I heated it. Still took forever to remove.