Re: 2014 GC Limited rear shock noise
let us know how you go.
I got a nov 2013 build with the standard for AUS load levelling suspension (towing set up in the US) - not to be confused with the air ajustable suspension.
It started the rubber ball knocking sound after 500km. I figured i'd wait until there was a clear fix before complaining
its a shame as the car is slow quiet otherwise. My 6 year old falcon ute makes less suspension noise - but more other types of noise.