Car viabrates around 110km/h

Dodge, Stealth RT, 1993, 154000km. Last year I hit a curb quite hard while exiting on a ramp. My drivers side rear tire was bent out at about 15 degrees (top to bottom). I got a new rim, they fixed the upper and lower control arm on that side. I did not get a wheel alignment at that time but the car drove fine (had it up to around 150km/h). Then one day I was gunning it along with another car until I hit about 110km/h and the car felt like a wheel was going to fall off. I got a wheel alignment but the problem still persists. I took the car to Dodge and due to my inexperience was taken advantage of. In the end they didn't fix a single thing! Please, if you have any ideas I can take to another mechanic it would be greatly appreciated.