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Unread 06-10-2013, 05:39 AM   #1
TexasSteve
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1999 XJ Cherokee 
 
Join Date: Apr 2013
Location: temple, texas
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WaaWaaWaa noise from Rear Axle

I'm getting a noise that seems to be getting louder from the rear axle. will the diff bearings start to make noise or is this likely to be an axle bearing?

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Unread 06-10-2013, 05:47 AM   #2
CJ7-Tim
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Most likely a drive shaft u-joint.
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Unread 06-10-2013, 12:51 PM   #3
foggybottombob
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Try greasing the drive shaft u-joints. If the needle bearings are still intact (as in not turned to powder) that might clear it up.
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Unread 06-10-2013, 02:07 PM   #4
RLE
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Check and see if there is any play in the pinion yoke where the driveshaft u-joint attaches to the differential. Is there any oil leaking from the front of the differential?

Check also to see if the differential is filled with oil. Pull off the rubber plug on the back and check if the oil is up to the level of the hole. If not, top off with the recommended oil.
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Unread 08-26-2013, 02:22 AM   #5
TexasSteve
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1999 XJ Cherokee 
 
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Location: temple, texas
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Turned out to be the axle. It was galled where the roller bearings ride on it. This being my first Jeep I was really surprised to see there is no inner race for the wheel bearings. Easy fix after a trip to the Pick a Part.
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