For whatever reason, I felt the need to take the bottom bracket out of my 1998 GT LTS last night. I applied plenty of penetrating oil, but I don't know how much of a difference it made. The drive side was tight, but I managed to get it out, regrease the threads, and put it back it. Non-drive was also tight, very tight, and I managed to screw everything up. I have it out maybe 4 thread lengths, but my bottom bracket tool slipped on me (user error most likely) and the tool let loose with a destructive grind to the teeth on the bottom bracket.

Any ideas on how I can get enough leverage to remove a tight bottom bracket without using the standard methods?

EDIT: Just thought to put the exposed threads in a vise grip. Hopefully I can get enough grip that way and it doesn't matter if I damage the threads (getting a new cup anyways). Kind of an "oh duh" moment, but writing out my problem helped out quite a bit. Just in case, any other tips?

What kind of bottom bracket do you have? Pictures?

If it isn't completely stripped you may be able to extract it by just bolting in the tool - depending on what bb it is. I'm guessing it's an octalink/shimanon splined tool you're using?

Don't take any chances. Always bolt the tool to the BB spindle when removing the BB. Save your knuckles.

Lesson learned, the hard way. I managed to saw the old cup out with a hacksaw blade without messing up the threads.