Hi, I have a 2008 Dodge Dakota 4.7l Flex fuel, which I have bought used 2 years ago. Love the truck, however can't for the life of me wrap my head around what is causing the front end to vibrate. It happens at speeds between 100kph and 120kph. And not always. Sometimes it won't vibrate at all. I could feel the bulk of the vibration thru the steering column, the rest is felt under the front and back seats. I have changed: upper A arms, tie rods(inner and outer), shocks(all 4), lower control arm with heavier duty ball joint, stabilizer end links and stabilizer bar bushings! The only thing I haven't changed are the tires which are in excellent shape....no abnormal wear or out of roundness. Can somebody please help me figure this out?

 

Rotate the tires, and see if anything changes.

Moving this to the correct section for ya as well.

 

Happened to me recently. New guy at Pep Boys screwed up the balance job.

 

have the wheels balanced, and maybe alignment?