I've had an SX6 from new - 2012 and the diff noise appeared after about 10,000km. Lean and Bennett are my nearest dealer and performed most of the scheduled services on the vehicle. Its now done 39,000km. After I read about this fault on this Forum I flagged the noise at every service and at the 40K service L&B arranged for Terry Sheilds, Parramatta to rectify the problem. They did this quickly and efficiently entirely free of charge. The vehicle, already very quick and smooth is like a new model - eerily quite, responsive and smoother still. There must have been a lot of other noises being produced by the dud diff/gear box. Combined with a new set of MIchelin Latitude tyres the improvement is amazing. Half the noise levels of the original Bridgestones which must be the cheapest tyres Toyota could source... All in all a very surpising response from Lean and Bennett and Toyota. Full marks to them. Almost enough to prompt me to buy another Toyota!