i have a high speed vibration from 58+

The U joints are good, I had the Diff rebuilt due to bad bearing about 1000 miles ago. I guessing its the Cv joint do to grease is all over around the joint.


How does one check the cv joint?

 

First check the rear end over for a small oil or Grease leak. Is the shaft going into the rear end loose up & down a small amount.