I live in Mexico and I have a 2009 LR2 which developed the noise in the rear diff at 40000 miles. Land Rover refused to help and I found a company in San Antonio Texas that rebuilds the rear ends and will either install them or ship them to your location. I am very happy with their service and their prices and now I have a noise free car!. They only work on Land Rover Vehicles and they had me in and out in four hours. Give Josh or Sam a call. This is their link to their website.
Centurion Differential Land Rover Differential | Centurion Differential USA

 

Thanks for sharing this resource. Was your vehicle's problem limited to the rear diff, or did you also have problems with the transfer case?