Rear brake shoes frozen

[NC_MULE]

Any tips of removing a set of rear shoes that are rusted to the posts that they pivot on?  I've been soaking them for days with WD-40, I can rotate them a little with a pry bar. Thinking I need some heat, don't have any experience heating parts. Anyone have any tips for me?  I've got a propane torch guess I try that then move up to mapp gas.  Think mapp gas has a hotter flame.
pb

[william anderson]

 hi are the break shoes rusted to the break cam or is the cam frozen in the brake hub , by your mesage it sounds as if the cam is frozen to the backing plate , i would be care full with heat as this can distorte the plat or even melt it , use a stonger penatrate oil an try working the cam back an forth , it should eventuly free up , thanks william

[reed]

I would like to see a picture, in the past i have put the brake hubs in transmission oil for a few days and let soak.
Thanks.
Steve. 

[NC_MULE]

The two brake shoe pivots at the top of the picture are whats giving me trouble.  I can move each shoe around the pivot a hair but I have to pry with a long bar.  The cam at the bottom moves fine.  Last thing I want to do is heat the metal and trigger a failure down the road.  I'll try soaking in ATF for a few days.  
I've been riding around with no back brakes for 6 months, everytime I speed down a hill I remind myself that should my front brake cable break I'm going to be in a world of trouble.  I ordered new shoes from Richard last fall so as soon as I get these off I can pop new ones on.  
pb

[NC_MULE]

Had troube with the pic, figured it out.

[edward]

If you can rotate the a little then the WD-40 is starting to work keep moving them as far as you can repeatedly and it will slowly start to break free....I bet ya.

[Mike Anderson]

Hi,
Just another thought. Since the shoes are going to be scrap anyway, why not use a cutoff wheel or small die-grinder to notch and then split the boss. Then all you will need to do is polish up the pivot pins and you will be good to go. That should prevent any damage from twisting the pivot pin or distorting the plate itself. Just my two cents worth, good luck.
Thanks Mike Anderson

[NC_MULE]

Ended up soaking in ATF which gave me a bit more movement then I ground to with in a mm or two of the post then split the balance with a chisel.  Didn't damage the post so it was a great success.
Thanks for everyones input.
pb