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Rear Differential stuff
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=22862
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Author:  wildrussian [ Fri Jul 27, 2007 6:06 am ]
Post subject:  Rear Differential stuff

I was changing rear differential fluid the other day and after pulling the pan off and draining the fluid I noticed a bunch of gray grease ont he bottom of the differential housing. The gray grease was on top of something that felt like a little grill. I didn't clean it out because I thought that the greas suppsosed to catch metal particles or something on the bottom. What was it? Should I clean it out?

Author:  Jeger [ Fri Jul 27, 2007 8:07 am ]
Post subject: 

It WAS metal particles. :shock: That is normal though especially if this is your first change.

That little thing you felt is a magnet and the grey stuff was tiny metal pieces stuck to the magnet... you should clean it out.

Author:  Jeepjeepster [ Fri Jul 27, 2007 10:23 am ]
Post subject: 

Yea, its usually best to clean those off but it should be ok. As long as its fine metal and no chunks then its normal. :)

Author:  JJsTJ [ Fri Jul 27, 2007 11:06 am ]
Post subject: 

As said above, Normal. The first change will usually show the most wear particles as the gears seat together in those first few thousand miles. If you are running a good, full synthetic, diff lube you should not see as much (or None) wear particles in subsequent changes unless there are gear problems (fairly uncommon w/ factory set up gears) which would also possibly be accompanied by gear whine noises, etc.

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