A few weeks ago I sideswiped a concrete wall going about 80 on the interstate. I got two new wheels for the front and back. Now my back wheel wobbles going down the road. Anyone Know what could have happened and how much i'm looking at to repair this?

Sounds like a bent axle.

either the axle or the hub.. samething happen to a jeep I had. Hub was bent causing the tire not to mount perpendicular to the road.