Vibration after lift installed

Chain Reaction

Active Member
Just installed a 2.5" lift with 3/4" shackles lift which turned out great. The only problem now is a vibration when driving and very noticeable at 40-55 MPH. It will stop when you push in the clutch and coast or there is no load on the engine/transmission. Could this be a bad u-joint or the angled shims on the rear springs?
 

rubiDave

Active Member
Check your rear drive line angle. Did you drop the transfer case or add a slip yoke eliminator when you did the lift? I'm not sure exactly what is available for a CJ5.
 

Chain Reaction

Active Member
Check your rear drive line angle. Did you drop the transfer case or add a slip yoke eliminator when you did the lift? I'm not sure exactly what is available for a CJ5.
Thanks for the reply. I didn't make and changes other than springs. I'm thinking it's the pinion angle because of angle shims on the springs.
 
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