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Driveline Vibrations

822 views 4 replies 5 participants last post by  T18A 
#1 ·
Ok I am getting close on this and cant quite get it to go away, I have a CV Driveshaft and it is within 1* at the rear yoke I get the usual "cyclical vibration" between 50-55mph slower than that and above that there are no vibrations only in that speed range, what else could it be, my driveshaft is a TomWoods and had the same problem with my old driveshaft (So I dont think that it is out of balance). I have a 4" suspension lift.
 
#3 ·
I get noises at that speed when a tire is out of balance. That seems to be about where tires change from compression (going slow) to expanded (going fast) so they float a bit there and if out of balance it will harmonic and show there first.

After a bit of this, the tread usually scallops...
 
#4 ·
a worn pinion bearing will do this also,.
 
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