Try packing your hotchkis bushings really full of grease. I was having an issue of squeaking until I really filled those bushings full of green grease till it was squirting out the sides!

lol if you look at mine you'll see all the excess grease I've put on it, but you know what I think it needs a re-grease since it sat at the stealers for 5 weeks and they probably did some nasty $hit at the bottom,

What kind of grease are you using?
Some GP greases will just migrate (walk) out of the bushing and leave them dry in very short order.

I've had great results with Amsoil Synthetic grease.