I want a side bet.... (Sorry Kris)
I have a feeling its lower control arms... It would take alot less to bend those than the frame, and when you bend a lower control arm from an impact thats exactly what happens, it pushes the wheel back in the well.... Its hard to bend a frame and if you did that, alot more would be misaligned (hood, fenders, doors, bumper, headlights, etc...) .... Its also very hard to notice a bent lower control arm by just looking at it because it could be bent one millimeter, which would cause the wheel to be pushed back about 3mm , so even a little damage that can barely be noticeable makes a big difference....
You may say, "Chris, how are you so smart??? You are such a f*cking genious..." And my reply would be..."I'm actually not that smart at all, I just learn from experiences..." (Second hand in this case....)
Anyone wanna put $1 on it????