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.

by in Duluth, GA on April 15, 2013
2 answers 2 comments
ANSWER by on April 15, 2013
poss cv joint or tie rod ends
COMMENT by on April 15, 2013
how urgent is it to get fixed?
COMMENT by on April 15, 2013
if thats what it is it should be done fairly soon.
ANSWER by on April 15, 2013
poss. wheel bearings. or u-joints.