2001 Toyota Sequoia limited review from North America

I have owned a Toyota Sequoia limted for 4 years and am encountering the same problem for the fourth year in a row. The rear axle seal has failed once again after being in the shop just 6 months ago. It is difficult to detect until you see the axle grease begin to appear on the wheel rims and since I keep the car immaculate it is quite obvious. But this time I was shocked to find that the vehicle failed the annual state inspection after the shop noticed the leakage while the car was up on the lift, not me. They told me the problem and I immediately knew what it was. The dealer had said in March of this year, the last time it was in for replacing the rear axle seals, that this last fix would definitely and permanently fix the problem. Well, this will be the fourth time in to fix a problem that was supposedly fixed only 6 months and 2000 miles ago.