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Rumble in the rear diffferential

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Old Mar 30, 2007 | 09:13 PM
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Rumble in the rear diffferential

Had this problem for some time.Only does it when backing up and turning wheel an/or pulling out and turning wheel.I was told this was probably the limited slip clutches slipping and grabbing.I had changed the fluid and friction modifier a acouple of months ago and it helped alittle.It seems it may be getting alittle worse now.Would adding more friction modifier help?Or should I just bite the bullet and find a good rear end shop or dealer?
 
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Old Mar 31, 2007 | 07:54 AM
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Ford said 4 ounces, that is marginal. Aoto Zone sells a 7 oz tube, that is about right. It did help mine.
 
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Old Mar 31, 2007 | 08:23 AM
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I think the tube I bought at Advance Auto was 7 ounces.Not sure if adding more would hurt or not.
 
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Old Mar 31, 2007 | 08:30 AM
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when you turn a corner the two axle shafts are going different speeds and the "spip" between them is the LS clutch. normal response would be if it vibrates or shakes when you turn the wheel, but not in a straight line--- add more friction modifier. if that dont help, then the cluth has a problem.
 
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