Rebuilding the rear brake with some “small” problems, Castle nut does not move - wtf!!! Options

[draganc]

Hi everybody!

I’m in the progress of rebuilding my rear brakes and are having problems loosing the rear castle nut, which holds the shaft.
Not really a surprise since the car was sitting for the last 8 years w/o usage.

I have used W40 for several days. No result. I have torched (IMG:style_emoticons/default/welder.gif) (only with a hand/propane torch) the nut several times up to about 650F. Used a torque wrench while the nut is cold and hot. No result - after 5 hours.

I’m sure someone else had a similar problem.

Any tips advise? Did anyone ever cut the nut of the shaft? How did it work out? Which tool did you use? Will a Dremmel work?

Thanks a lot for any advise/tips.
Dragan

[underthetire]

One other one that works great and is super cheap is ATF mixed with Acetone. And Kroil is the best off the shelf, much more expensive. We use it where I work, and they outlaw more than the state does, so I wouldn't worry about it. Just wear gloves.