vibration

[midlife72]

I have a 2011 Ranger Sport 4WD I just picked up this last weekend that has a vibration I can't seem to pinpoint. I've had the dealer rebalance and rotate the tires but it still vibrates. The only time it does it is when I'm driving about 65 or higher. It's not a constant vibration, it comes and goes. It will vibrate for about a half mile then not vibrate for a mile or better. sometimes it vibrates longer, and sometimes not for several miles. The steering wheel doesn't shake right and left and it doesn't pull to either side. I'm thinking the driveshaft is out of balance, but on a new vehicle with less than 200 miles? Anybody else have silimar trouble? Solutions?
Thanks for the help
Don

 

[doorgunner]

I was gonna say loose wheelbearing, but the steering wheel feels good...I'd chock all the wheels good--put it in nuetral--and get under it to shake pull wiggle anything that rotates in the drivetrain to see if there;s some slack that the mechanics overlooked...let us know what the solution is.

 

[straycat]

Take it back to your dealer and let them test drive it. That is a brand new truck!!! Could be a rearend issue as well. Carrier bearing...etc. How does it do while in 4x4? Any issues there?