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Unread 01-23-2013, 01:36 PM   #1
Kanola
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Join Date: Mar 2012
Location: Vancouver, Wa
Posts: 18
Vibration at higher speeds.. 50mph+

Got a 96 grand Cherokee 5.2 v8 full time 4wd I just swapped out the front axle from a CV style yoke to a U joint yoke style axle. I drove it around for awhile without the front driveshaft (for different reasons) and it had no vibration problems so I dont think it's my tires being unbalanced.. So I picked a U joint style driveshaft off a junkyard zj and put that on the new front axle and now when I get it on the freeway the jeep begins to vibrate randomly and it comes and goes often.. It seems it vibrates more whenever I let off the gas and begin to coast at high speeds..

Please let me know any ideas might help thank you!!

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Unread 01-23-2013, 01:47 PM   #2
PolkaPower
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1998 ZJ 
 
Join Date: Aug 2011
Location: The Abyss, MD
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Did you have the new shaft balanced and check the U joints?
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Unread 01-23-2013, 10:22 PM   #3
Kanola
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I'm not sure how to check or test the U joints.. And scince I pulled the driveshaft off another jeep I figured it would be ok, but maybe that's not true?
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Unread 01-24-2013, 02:55 AM   #4
PolkaPower
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1998 ZJ 
 
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It could be worn out, unbalanced, or bent.
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Unread 09-23-2013, 08:46 PM   #5
tevisesplin
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Join Date: Apr 2012
Location: Thatcher, AZ
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check the torque of the t case front output shaft yoke. Specs are 90 - 130. Mine would vibrate starting at 65. tightened the yoke nut and it seems to have stoped
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