2004 Toyota Sienna suspension problems

2004 all wheel drive toyota sienna wears tires down to metal cords on inside edges were extremely chopped at 11,000 miles and worn to metal by the time toyota replaced at 23,000 this is not a safe condition ,no one can expect to see seperated tire cords at 23,000 on ant production vehicle,,vehicle came with dunlops dsst 22560-17 and were replaced with bridgestone b380 runflats at toyotas expense .however this is a desiegn flaw in our opinion ,does the all wheel drive push and pull on suspension causing tire…

Run flat tires are unsafe. 2004 toyota sienna XLE AWD has oe dunlop sp sport 4000t dsst 'run flat' tires. Car has 19,500 miles of moderate driving. Dealer refused to rotate and perform alignment at 19,000 miles because tires were too worn. Referred to dunlop who elected to do nothing. Now, at 21,500 cords are visible on inside edges of front tires. A. The only available replacements (from tirerack.com) are $845 plus mounting and balancing ($142). B.