As I said earlier, I took mine completely apart and regreased with some redline
synthetic bearing grease and put it back together. The offending bushing/sleeve were jammed tight when I got to it. I took my dremel and smoothed it out and everything went together like butter. We jumped in the car and drove it about 50 miles and the noise was starting to come back.
I ordered Energy Suspensions bushings and they look like they will fit a CSX. Yesterday I took the car out for a spin before I start put it up on jack stands for a while and there was NO noise...........
So its now back on the drive and enjoy program.
My advice is find a good grease or anti-sieze and take it apart. You just might find the sleeve jammed in the bushing and it just needs some TLC
