I have a 2006 lt with 2.4l with 140000 miles on it and over the last two years I have had issues with the front end. I have replaced the lower control arm bushings twice. Then the whole lower control arms themselves. And sway bar links 3 times. Struts once sway bar bushings wheel bearings CV axles , ball joints and outer tie rods. And still have a Rattle and a clunking noise. I just changed my ball joints and now my steering wheel is not centered. My car dosent pull to anyone direction when j let go of the wheel. And it's not hard to steer. And before j put the ball joints in the steering wheel was centered. Any suggestions

 

Wheel alignment is needed as that is pretty much a standard needed thing after replacing ball joints. Did you not get a wheel alignment?

 

I don't know how just ball joints could change the length of the tie rod ends. Maybe the tie rods were both disconnected and somebody played with the rack?
Clunks: intermediate shaft? Loose bumper cover? Worn motor/trans mounts? Broken air cleaner bracket?

 

Hmm, clunking noise, the upper engine mount?

 

Do the alignment first to fix the centering issue (and keep you from potentially killing a set of tires prematurely), then follow up with the other advice as far as things to look into. All are possibilities.