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Old 05-03-2015, 02:27 PM #1
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help!!wheel bearing or carrier bearing or something else?

https://youtu.be/tk1Dq-x9P6o

Trans in neutral. Pinion not turning. Same sound at both wheels. Notice it get's louder when applying pressure to spin wheel.
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Old 05-03-2015, 06:55 PM #2
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May not be abnormal - when you are spinning one tire the spider gears in the diff are rotating which make a clicky sound like that. Do you have abnormal noise at driving speed? Any other symptoms?

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Old 05-04-2015, 08:20 AM #3
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Yes, I have a howling noise through all speeds. Loudest at 40mph.
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Old 05-04-2015, 08:41 AM #4
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It does that when you spin either wheel? And the pinion/driveshaft is not turning in the video, is that correct?

I'm thinking spider gear more than a bearing. Have somebody stick their ear on the pumpkin while you spin the wheel, or just yank the diff and have a look. You'll probably have some pretty shinies in the gear oil.
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Old 05-05-2015, 03:17 PM #5
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Is that what I should do next...drop the gear oil?
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Old 05-05-2015, 03:28 PM #6
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It could be the bearings but usually when they go you'll also blow the axle seals and it leaks all over the place. Take the rear rotor off (the drum cover) and if it's wet and goopey then you found the culprit. If not, I second draining the oil. Worse case it's fine any you just pump it back in there. Make sure you take out the fill bolt before the drain bolt so you know you can get it back in!
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Old 05-05-2015, 06:33 PM #7
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I would say check the gear oil now. It sounds to me like you have lost your oil and so the gears are chattering. A bearing would have a cyclical pattern that has the same frequency as your tire spinning. That is making many cycles per wheel rotation.
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Old 05-06-2015, 01:55 PM #8
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gear oil is full. I had pinion brg replaced about 75k miles ago.
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