8 help - JeepForum.com

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post #1 of 3 Old 04-06-2012, 07:12 PM Thread Starter
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1996 XJ Cherokee 
Join Date: Mar 2012
Location: Tucson
Posts: 121
8 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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post #2 of 3 Old 04-07-2012, 09:21 AM
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1998 ZJ 
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Location: Exeter, RI
Posts: 7,349
Whining probably indicates bearings. Time to rebuild or replace.
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post #3 of 3 Old 04-07-2012, 11:22 AM Thread Starter
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1996 XJ Cherokee 
Join Date: Mar 2012
Location: Tucson
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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