While I was driving at about 35mph the left front hub carrier separated from the lower ball joint. Wheeeee…. Steering with 1 wheel is "interesting". The nut either broke or somehow unscrewed. The only damage seems to be that the bottom of the lower control is scraped flat from sliding down the road. Nothing else bent or broken. Below is a picture of the 'flattened' control arm and one of the driver's side for comparison.

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Do I need to replace the control arm or is it ok? They're stainless steel ones from Pearce Design, and so are pretty beefy. Not like the flimsy original ones.