Toyota Repair: 2004 sienna timing belt, oil seals, timing belt

Question
On the subject Sienna, I have 67,000 miles and the dealer advised the timing belt should be changed at 90K or 5 yrs which ever comes first. I am getting conflicting information from other Toyo dealers. What do you recommend? Thanks

Answer
It's "recommended" at 90K miles but can easily go to 120,000 at which time I would also replace the water pump and any leaking oil seals. Most dealers use the 7yr/90K recommendation,which I personally don't believe in, to me mileage is the determining factor. Replace it between 90-120K.