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front drive shaft in 2wd?

125 views 2 replies 2 participants last post by  bondo dust  
#1 ·
How much is the front driveshaft spinning in 2wd at road speeds? I am fighting a vibration and after haveing the rear drive shaft balanced I still am getting reading of a driveshaft shake with my test equipment. NVH app.
I make an assumption that the front shaft, ring and pinion gears are not turning much if any. Aren't they disconnected with a axle disconnect?
Thanks for constructive knowledge.