Problems Removing Strut Gland Nut 73 240z

[Mayolives]

I'm having a real problem removing the strut, gland nut from my 73 240. I've tried a large wrench and a pipe wrench and have only managed to "chew up" the gland nut's flat surfaces and bend it. I suspect my only remedy now is to heat it with a torch but I'm concerned that I will destroy the "O" ring. It's been years since I've done this job and I can't remember exactly what the "O" ring looks like. My FSM doesn't describe the "O" ring or at least I can't find a description of it. Is it a common "O" ring that can be purchased or is it a real special type that is now, NLA? I sure would like some advice because I'm dead in the water until I can remove the nut.    

[NewZed]

If you're replacing with aftermarket inserts like KYB or Tokico you don't need the o-ring.  The original factory design contains the oil in the strut tube but aftermarket is self-contained.

[Mayolives]

I'm using KYB. I didn't know that oil wasn't required. So they are self cooled? I guess that solves my problem. Thanks!

[grannyknot]

Use lots of heat and penetrant and alternate between the two, it is sooo easy to f--k them up. This was using a pipe wrench and not enough patience

[Mayolives]

They finally came loose!  Lots of heat, penetrating stuff and yanking did the track. Nearly tore the top of my work bench loose under my vice, but it will survive. Can't wait to tackle the rear ones.