What is your question?
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What is your question?
Also, if you start off smoothly when you reach a speed of approximately 45 mph it will start viabrating until you reach 50 MPH

ok, then you need to check the front axles for bad cv joints. also, the rear drive shaft for bad joints as well. Roy
bad tires or cvaxle check dog bone motor mount at top of engine is it skiping put on a computer to check
I have replaced all four tires & balanced and had a four wheel alignment