It could be caused by balance. Let me explain some things to you. Feathering is can be caused by alignment, weak shocks, or tire balance. You can see it and feel it on the tire itself. If you run the palm of your hand over the tire, you will feel high and low spots. THat can cause a vibration. Also, tire balance can do the same.
Next, I need to know where you feel the viration the most, the steering or the seat and floor. I ask because of this. If you feel it more in the steering, the problem is with the front tires. If you feel it in the seat / floor, it is coming from the rear tires.
Let me know if this helps or if you have other questions.
Monday, November 30th, 2009 AT 12:10 AM