O.k. what is the needle bearing? The reason I ask is that my wife's Ex has a noise and we thought it was the dang 4x4 hub which were shot but that didn't take care of it. Replace the ball joints. Sway bar end links. When you take a left turn and only a left turn it makes a grinding noise. Not all the time but about 40-50%. If you go around a rotary and hit bumps it seems like the front end is rattling itself loose. Go right and nothing.