Front End crash, now car shakes?

[dued]

I had a front end collision about 6 months ago. The frame damage included a ripped out bumper support bolt and bent up radiator support.The damage was repaired by a body shop that bent the metal back into place (to save costs rather than having them weld in new support.) The car is currently repaired with all panels aligned properly, so I'm assuming that the frame is in proper alignment. Now that I drive the car up to 65, i get a noticeable steering wheel vibration, but past that it isn't so bad (80+). Is this frame still good? What could be causing this?