I'm trying to change the shocks on my 1993 Acura Integra, but I just can't seem to loosen the self-locking nut from the bolt that connects the lower part of the shock to the knuckle. I tried Liquid Wrench and that doesn't seem to do a think, I also tried an impact screwdriver (the kind you hit with a hammer) but nothing seems to make a difference. I'm thinking that the impact didn't work because the way my suspension is mounted allows the whole nut/bolt/shock assembly to twist together a few degrees, but I'm not sure that's a factor. Is there a trick to removing these nuts or should I just go and buy/borrow a beefy impact wrench?
I remember having issues like these about 5 years ago, and we ended up having to grip the screw/stud that was sticking out while turning the nut. Does the bolt have a flat piece that you can maybe get a wrench on? Try this if possible. Another option, assuming you are replacing them, vice grip the polished rod with some beefy vice grips and removed the nut. This will damage the polished rod, so only do this if changing the whole assembly.
I got the nut off. Out of sheer frustration combined with late night stupidity I put the longest cheater bar on it and jacked up the end of the bar using a hydraulic jack. Surprisingly, it worked even though I was turning it in the wrong direction (that's the reason I hadn't tried that sooner). The nut un-seized and I was able to remove it relatively easily afterward. I guess brute force was the way after all.