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Old 16-04-2012
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Default Vibrations/Shudder under throttle
G'day

My TJ has "New" issue.
Under acceleration I get a harsh vibration from the rear.
At a constant speed, and off throttle rolling it pretty much disappears.
I'm assuming it drive train.

The TJ is an auto, has a SYE and a double cardin rear shaft.

The pinion seal is leaking a small amount of oil, but I don't think this is related.

Thanks for you help.
Cheers
Dave
  #2  
Old 16-04-2012
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check your uni's?

mine is doing this and found it to be the rear uni on the tail shaft (diff end).
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Old 17-04-2012
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Thanks GR

How do you tell if they are shagged out?

Cheers
Dave
  #4  
Old 17-04-2012
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mine was completely shagged! but just slowly rotating the drive shaft from side to side, there should be no slack in the uni joint itself. (the drive shaft should move a little in each direction for slack in the diff / transfercase).

compare it to the front one maybe, hopefully its in better condition and can tell the difference between the two...?
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