97 dodge neon repair

I have a 97 dodge neon that hit the wrong side of the guard rail on the passengers side. The body is all fixed, but the frame was off by 2" lengthwise of the car. The frame has been straightened, K frame, A frames, and rack and pinion replaced, driveaxle on passenger's side replaced. When the steering wheel is turned to the left, and when the transmission is in gear, there is a noise that sounds like a *loud* chatter and the vehicle shakes. When not in gear, the steering "pops" when you hit a certain point. At first it didn't do it, but after driving up a slight incline doing a 3pt turn, it chatters every time. Any ideas as to what it could be? The dealer is confused but thinks the frame could still be out of alignment. The frame shop said the frame was straightened to 1/8" which is pretty close. Out of all of the cars I've owned this neon has been the worst to fix from a collision.