Originally Posted by jeepjeepster
Like BVCRD said, ball joints tend to clunk. Could be the sway bar bushings..
I'll second the opinion on the sway bars. I started getting a squeak in mine after I put my lift on, asked around and it was recommended that I lube my sway bar bushings. Once I did that (and discovered I had re-assembled one of the sway bar connections incorrectly) the squeak went away. Now I have one coming from the front right which is apparently the torn dust cover on the Rancho strut, I just haven't bothered to get in there and take it out. Hope this helps.
EDIT: well, I found out the sqeaking/chirping sound was not the dust cover. Went to Walmart and got a can of silicone lubricant, hit all the bushings (upper control arm, all swaybar linkages) and the noise is gone (for now). Makes sense that it was the bushings since it would only happen in a left turn or if just one wheel went over a bump; if both wheels went over it was fine.