Car shakes over 45mph. on 2006 Chevrolet Malibu

We got new brake calipers and tires changed 2-3 weeks ago. Tires have been re-balanced. It's not just steering wheel that shakes, but whole car. It was just a slight tremble, and now it's worse after balancing. Right around 45-50 it shakes, but 60 it calms down.

Asked by for the 2006 Chevrolet Malibu
2 answers 2 comments
poss cv joint or tie rod ends
how urgent is it to get fixed?
if thats what it is it should be done fairly soon.
poss. wheel bearings. or u-joints.