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 Post subject: Drive line vibration
PostPosted: Mon Jun 19, 2017 8:21 am 
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Joined: Mon Apr 10, 2006 10:45 am
Posts: 306
The little libby is now my commuter since we just got the wife a WK2 EcoDiesel. It is at 197K now. It has had a weird vibration for a while that I notice more now that I am driving it regularly. It only occurs only at about 45-50 MPH and is load dependent. Very light load almost can't notice it. Heavy load, very noticeable. It' s very high frequency, low amplitude. At highway speed, smooth as usual. The rear axles have little play, but I know c-clip style axles can have some normal play. I had dealer check rear wheel bearings while it was at the dealer for something else and they said wheel bearings Ok. I recently replaced rear upper control arm due to worn out bushings and no change. I'm thinking drive shaft u joint??? Thoughts???? Oh yeah, if it is in full time 4x4, the symptoms are much better..

HERS:'16 WK2 Limited EcoDiesel - GDE hot
HIS: '06 Liberty CRD - EHM , GDE eco, Brite Box, Stanadyne FM100, Cummins lift pump, OME lift
'06 Dodge/Cummins - Play truck; a couple of fans, a proper cam shaft, and man handled electrons by EFILive 500/900
'01 Dodge/Cummins - Work truck; Lots of mods

 Post subject: Re: Drive line vibration
PostPosted: Mon Jun 19, 2017 10:19 am 
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Joined: Sat Aug 24, 2013 11:36 pm
Posts: 2976
Location: Central GA
I would be checking the rear driveshaft U joints real close! You may actually have to remove them to find if you have a dry or seized up joint causing the vibration! :roll:

2005 Jeep LibertyCRD Limited :JEEPIN:
Blk Brush Guard/Hella's
Ironman Springs/Bilstein's
Yeti Stage4 MaxTune
Weeks ElbowKit & Battery Tray
Carter Intank-pump
2mic. Sec.Fuel Filter
V6 Airbox
GM11 blade fan / Hayden HD clutch
98 Dodge Cummins, 5"exh. Viair, Huge K&N

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