VEHICLE APPLICATION: Fits Toyota Sienna 2004-2010 OE ENGINEERED: Designed to smoothly transmit torque at a constant speed, Cardone Constant Velocity CV Axle Drive Shafts utilize proprietary engineering processes to ensure they meet Original Equipment form, fit, and function. DURABLE QUALITY: Neoprene boots are designed with additional bellows, when needed, to resist bellow stress and cracking, which is the leading cause of boot failure. RELIABLE PERFORMANCE: High-quality grease withstands high-temperature and high-torque demands to ensure long-lasting, reliable performance. HASSLE-FREE INSTALLATION: A new axle retaining nut is supplied with every drive shaft assembly for a hassle-free installation, due to the likelihood that the original retaining nut is worn or stripped.