Any idea what this creaking noise is that is coming from my car? (video included)

You can listen in here https://youtu.be/If9V7jrp4kQI just noticed this. I notice when driving slow, over bumps/speed bumps or when the car jerks forward a bit (I'm driving stick). It's constant, worrying and annoying. I just replaced the front wheel bearing and joint on both wheels. via /r/cars http://ift.tt/2sT6MKz