Thanks everyone for all the help. I never thought of welding another nut to the nut I'm going to try that later because the nut is kind of in a tight spot.


Thanks,
Alan

 

just another idea to try-------try getting a small propane torch, heating the nut pretty hot or really hot might work better, and then get the closest next smallest size socket to the nut (possibly metric or vice versa), tap it on there real good with a hammer, and start with the breaker bar!!!!!!

 

hack saw or a metal cutting blade in a sawzall.

you can also buy a hacksaw that'll just hold the blade so you can get into tight places.

Hack saw

 

I've used a dremel to grind off rounded nuts. For bolts you can use an extractor set. You drill a hole in the bolt, put the extractor in the hole and tap it with a hammer, then turn the extractor with a tap wrench. Also, the best penetrating oil I've tried is PB Blaster.