Help in removal of stuck control arm bolts

[apophis]

Well I've sure done it this time. Trying to replace my 8.8 rear with another diff that has built gears. I've got everything disconnected besides these 2 lower control arm bolts. I can get them to spin [which was a whole process] but cannot get them to come out at all. I've pried on the one tou see further out [passenger side] but can't even get the driver side to budge out.
I've tried fire, pb blaster, smacking it with a hammer, prying it with a screwdriver and vice grips. Nothing wants to work with me here! Anyone experienced have any advice to get these out?

 

[broncojunkie]

I just went through this recently, but it was 4 bolts. I managed to get 3 of the 4 out with a combination of things. After about 3 hrs, a pile of spent blades, chisels, etc, me and a buddy gave up. I stopped at the hardware store on the way home and grabbed a somewhat spendy carbide saws-all blade. It zipped through that bolt in about 30 seconds.

The correct replacement bolts are a little hard to find where I am. Fastenal or Grainger will probably be able to get something that works, but I ordered some online that were perfect and reasonably priced. If you need it, I could probably look it up and see where I got them.

 

[Erkenbrand]

+1 to the above. Get yourself a good blade and cut through it. Maybe try an air chisel to drive it out? They work surprisingly well sometimes.

 

[347HO]

Heat the head using MAP gas torch.
They must get almost red hot.
Should spin right off.