Join Date: Aug 2001
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Re: CV driveshaft or adj. upper control arms?
Sounds like you have got a pretty nice set up going on. After your lift did you install new tires? or are they still yet to come. I ask because... Could it be possibile that your Vib is coming from a tire, and not the drivshaft? Try switching the tires front to back, and see if your vib moves.
If you are sure it is the rear drive shaft then you should address it. If you do decide to go with a CV type shaft, you are going to have to address pinion angle. You new CV shaft will be happiest if the pinion is pointed directly at the output of your Transfer case.