noise and vibration -
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post #1 of 2 Old 11-02-2008, 04:50 PM Thread Starter
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1981 CJ7 
Join Date: Jun 2008
Location: okla
Posts: 8
noise and vibration

i have a 81 jio pk it has started vibrating and a noise when the clutch is disengauged and while going down the road i thank it might be a bearing in the trany just need some help on what iam up against thanks davoo

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post #2 of 2 Old 11-15-2008, 03:57 AM
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1981 FSJ Cherokee 
Join Date: Nov 2008
Location: sydney, australia
Posts: 3
hi, i know your post was a couple of weeks back, so you might have this sorted already.

for vibration in the drivetrain, i suggest looking at the cardan joints on the drive shaft. you have to get under the car and look at each end. hold the yoke on the diff with one hand, and try to twist the drive shaft. then do the same at the transfer case end. any movement at all between in either cardan joint will likely be the cause of vibration.

i recently replaced them on my 81 fsj after vibration developed quite suddenly. it was most noticeable on overrun in gear at slower speeds. i found that one of the joints had needle rollers missing on one corner, and there was, not suprisingly, quite obvious movement in that joint.

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