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Old 04-29-2012, 02:15 PM
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9"ford rear noise

I have a Ford 9" in my Camaro which seems to be getting noisier and worse on deceleration. It clicks and jumps around on tight turns which might be because it is a locker. I have never had it apart and it came with the car. The only thing I know about it is it is 31 spline axles the pumpkin is large and has aluminum on the pumpkin casing. The noise seems like someone place cast iron baseball cards in my Cragar spokes. We at least that is the best I can describe it. The clicking on turns seems to be worse than usual also. I did a lot of searches with the clicking being normal on turns for the locker. I can hear the clicking sound when up on jack stands and just turning the wheels in neutral. Any thoughts or where to look before ripping the pumpkin out would be appreciated.

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Old 04-29-2012, 03:28 PM
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Adding some more info I just had it on jackstands turning one tire I can feel it click in when both tires are turning there is no clicking sound when I turn one backwards for a sec it disengages and the I hear the clicking when only wheel turns, It almost sounds like that clicking stays when driving. Also not sure how much slack or play I am supposed to have but when I turn the driveshaft clockwise then counterclockwise I would guess it moves 1/8 of a turn, does this sound normal. I am thinking maybe the grease needs changing probably sounds ignorant but the grease seems thin and black.
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Old 04-29-2012, 03:36 PM
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Lockers are noisy and not very street friendly, but they rarely break. They also wont make any noise when going straight down the road, ie the tires have to be going a different speeds for the ratchet to activate.
A noise while going straight that changes when throttle is opened or closed is usually a bearing issue and can be either pinion or carrier bearings.
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Old 05-18-2012, 04:18 PM
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To add to this post, I changed the rear end grease the noise is still there. I noticed the grease comes out the axle ends and I was wondering, when the axles bearings were changed they did not use sealed bearing so I later added seals(because I was told this would stop the leaking). I was also told I could not get them anymore but I did find them recently. Well back to what I was wondering, could the rear end grease getting on the bearings washed out the packing grease could that cause them (the bearings) to fail prematurely? Any help would be appreciated. And if Imsport is right how do I tell if it is pinion or carrier noise?
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