I need to replace my steering stiffener, but I can't get the bolt out of the track bar. I got the end near the right tire off and the front castle nut off the bolt in the middle of the track bar. But, I can't seem to get the bolt out of the track bar.
Is that bolt threaded into the track bar? I put all I could into loosening the nut on the other side of the track bar, but it wouldn't budge.
Try jacking the car by the frame and let the axle droop a bit. Trackbar could be under compression/tension and that will seize the bolt.
Play around with the axle/body position, you may be able to find a spot where it's not binding.
Trackbar bolt is not welded to anything, by the way.
When you say "steering stiffener", I guess you mean the steering stabiliser - the thing that looks like a shock absorber oriented horizontally? If so, then it's not connected to the track bar, it's connected to the drag link.
Anyway, getting the threaded end out of the drag link is a common problem. You could use a tie rod puller like PolkaPower, or you could try a Pitman arm puller like this guy: