There are only 2 things that come to mind. 1) The strut top may be bad. Between the plate where the 3 studs come up through the fender and the plate where the top of the coil rests. Thats the area that allows the strut to pivot when turning the steering wheel. If it becomes seporated the strut will knock up and down slightly when going over bumps. 2) would be bad struts (although already replaced) if they are not obviously leaking they may have lost their pressure. Only way to check for sure is to remove them, seporate them from the spring and try to push the piston down by hand. I have seen struts were only the top 1 or 2 inches of the piston stroke is dead with no pressure. The rest of the downward stroke had pressure. That would give you a clunking noise when going over bumps but not when bouncing the car to recreate the noise in park.
I have rarely seen a bad lower ball joint on a front wheel drive car.
Good Luck
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