mine has done it since new with 3 different sets of tires and it's not loose bolts or flex. i've taken it to 3 or 4 shops and no one knows. i've heard it was a driveshaft issue. mine vibrates 55-60 mph only on driver's side. weird thing is it wont do it a few hundred miles after a rotate. one shop convinced me it was a warped rim so i bought another. no change.

 

I have an 06 and it does the same thing was told it is the shock placement. Is there a fix for it?

 

ya I have not heard of anyone having a solution to the problem the two things that I think it may be on mine is either the u joints on the drive shaft you can tell because they clunk or the e brake hanging up. that's funny that someone said driveshaft issue I might want to order those u joints