Cannot find location of noise

I have a clunking noise that's coming from my front suspension the noise can be heard when I travel over a bump or a railroad. I've taken it to four different auto shops they could not find the noise. Every shop says the same thing, "everything's new and tight." I even took it to the Chrysler dealership they performed three separate diagnosis and couldn't find anything. I've replaced everything: new loaded struts, new calipers and pins, new brake pads and hardware, new sway bar links, new motor mounts all around, new control arms, new sway bar bushings, new tie rod ends, new ball joints, brand new tires, the sub frame is not bent and the subframe bushings are still good, and new rotors,. Yet the cracking noise is still there. Does anyone have a clue as to what else could be causing this noise?