Bandaid1951 wrote:
I had new springs and Bilstein shocks installed on my 2006 Liberty CRD, front and rear. First road test showed a severe vibration after 80 kph that was not there before the work was started. Rebalanced all the tires with no improvement. Inspected the front end and found no issues. Vibration appearance is a mystery. Old shocks and springs were the original equipment from new. New ones raised the Liberty quite a bit and is it possible the change in geometry in the front end is contributing to the vibration that is not easily diagnosed? Any ideas would be appreciated.
Does the vibration seem to come from the front or rear, or can you tell? Knowing the general area from where the vibration emanates from might help in diagnosing issue.
Some items you can check:Check both rear driveshaft U-joints closely to make sure they move / flex freely. You will have to disconnect rear driveshaft connection point and remove driveshaft to properly test both of them.
Remember, when you lift a vehicle you are changing the driveshaft to transfer case output shaft angle and the driveshaft to differential pinion shaft angle.
Some U-joints can get set in a small amount of movement at a certain angle and when you lift it can put them outside of what they have been accustomed to and can cause a vibration.
If this is the case, simply replace both U-joints.
also
check front driveshaft CV joints for any excess movement along with both front inner and outer CV joints drive axles since you have changed the angles on all of them by lifting the vehicle.
Normally just lifting a vehicle 2- 2.5 inches should not cause any vibrations.
Was there any tire work involved, new or rotation?
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Supporting Vendor and Moderator of LOST05 Jeep Liberty CRD Limited
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