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Hope this helps: With the wheel on the car and raised up, did you grab the tire at the top and bottom and see if you could feel any looseness? As I remember, the front wheel bearings are made as a sealed, 1 piece unit that is pressed into the hub carrier/strut assembly. This type of wheel bearing cannot be re-packed with grease, unlike the rear bearings that are simple inner/outer roller bearings. My concern is : if you actually saw the bearings, which I think are a ball bearing type, you already have a problem. Because of the "Sealed" issue, your bearing assembly may have failed, which might allow you to actually "see" the insides of the bearing. When you turn the wheel by hand, does it seem smooth or does it feel rough? Does it make any noise when you slowly turn it? In closing, there are only a few items that would be prone to causing front-end noise while moving: lower balljoint, inner/outer c.v. joints, wheel bearings, metal-to-metal brake rotor/caliper contact. I suspect the wheel bearing assembly. By the way, it usually requires a press to install the bearing in the hub carrier....the fit is a very tight, machine type fit. Please let me know what you find! Ken
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