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Unread 04-06-2012, 07:12 PM   #1
USAXJ
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1996 XJ Cherokee 
 
Join Date: Mar 2012
Location: Tucson, Arizona
Posts: 121
8¼ help

My rear diff started whining after being stuck in the mud for about an hour. I got it home and swapped the fluid but found no water. The fluid was very runny and dark which I thought was odd since it was only about a month old. I swapped the fluid with 75-90 and the whine didn't go away. I just learned that the LSD requires 75-140 and I'll be doing that first thing in the morning. My question is:if does the whine indicate that it's too late and the clutches are worn? I'm a differential noob and any input would be greatly appreciated.

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Unread 04-07-2012, 09:21 AM   #2
Technohead
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1998 ZJ 
 
Join Date: Dec 2008
Location: Exeter, RI
Posts: 6,600
Whining probably indicates bearings. Time to rebuild or replace.
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Unread 04-07-2012, 11:22 AM   #3
USAXJ
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1996 XJ Cherokee 
 
Join Date: Mar 2012
Location: Tucson, Arizona
Posts: 121
I just pulled the cover and had to scoop a bunch of sand out. The magnet was also fouled out with shavings so now I'm tearing into it replacing more than I wanted to.
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