Driveshaft problems of the 2008 Land Rover LR2

My 2008 Land Rover Lr2 has suffered 2 different driveline failures within a couple months of each other at approximately 84,000 miles. First, the pinion bearing in the rear differential failed causing the dealer to replace the whole differential as this is a sealed unit. Shortly after this, a driveshaft bearing failed as well requiring a new driveshaft since lr does not sell the bearing individually only whole assemblies. Both repairs were diagnosed and repaired by the local Land Rover dealer at considerable cost of approx $4500. This vehicle was purchased new and has had all regular services performed by the dealer. For a vehicle of this supposed quality to suffer two such failures below 100,000 miles as most manufacturers warranty such components is unacceptable. Online lr forums indicate that this rear differential failure is quite common and often occurs at even lower mileages than mine did; sometimes even within the warranty period for some "lucky" people. The fact that these failures to such a major component are occurring at low mileages indicate a faulty design and Land Rover should initiate a recall on the rear differential.