One problem related to driveshaft has been reported for the 2008 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Toyota Sienna based on all problems reported for the 2008 Sienna.
Detroit axle, in michigan, is selling defective struts, straight out of the junkyard, and rack and pinion steering and many other suspension parts, advertised as new, by just placing a coat of paint in them. They offer a warranty of one year in the products, but the consumer must pay for the removal and installation of the part. I played their game for three times and I foolishly paid 3 times for the strut installation, plus other damages the faulty struts caused me . The faulty struts caused my frame to loosen, my horizontal drive shaft to damage, and rack and pinion steering, that detroit axle sold. Well, my vehicle shakes violently at between 45-55 miles per hour, thus having to pull to the side of the road. I managed to drive to a mechanic through back roads at low speeds. The defective rack and pinion steering and the defective, sold as new parts, and advertised as new parts failed in three occasions ane damaging my other parts of the vehicle. It cost me over $3000 to replace those parts plus the money that I gave to detroit axle, with the collusion of ebay selling his products. Once the parts are received, within 60 days, he closes the feedback on his page, thus not letting the suspecting public complain against his junkyard of defective parts. Ebay protects him. I still have to replace my michelin new tires for more expense and the third pair of struts are still on the vehicle, in which I still have to replace for a third time!.