Hi Jay, well the rearmost hanger definitely looks shot, so replacing that would be a first step I reckon. Not so sure as to why the rattling ceases when you clamp the gap in the hanger back together. Unless there is a metal to metal contact point somewhere in the same area.
N6 JMX
Can you please report your findings for me as I'm very interested in the outcome. So far I've replaced wheels, tyres and have had the wheels balanced for the umteenth time and still not really making things any better. Would be much appreciated 👍