Could be a bad CV joint, maybe due to a torn boot. You could isolate it to one side or the other by locking only one hub and drive testing it. Might also be something bent from the pot hole incident. Might have the alignment check and give the suspension parts a good going over looking for damage. Also could like a the front tires, lock the hubs and try spinning the tire by hand, to see if you can duplicate the noise/vibration.

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