USA Standard Gear driveshafts are built new from the ground up, not remanufactured, to provide decades of everyday use. All driveshafts arrive fully assembled and ready to install to get your vehicle back on the road quickly. Around 48.6 inch. long flange to flange New universal joints, slip yokes, shafts and components ensure a long life All units are dynamically balanced at 3,000+ RPMs for vibration-free driving USA Standard Perfect Fit drive shafts are guaranteed for proper fitment and easy installation USA Standard Driveshafts are strengthened over common Oe shafts to prevent Oe failure Slip yokes & u-joints are lubricated with high temperature grease Brand new and fully assembled for simple out-of-the-box replacement Features and Benefits: Around 48.6 inch. long flange to flange New universal joints, slip yokes, shafts and components ensure a long life All units are dynamically balanced at 3,000+ RPMs for vibration-free driving USA Standard Perfect Fit drive shafts are guaranteed for proper fitment and easy installation USA Standard Driveshafts are strengthened over common Oe shafts to prevent Oe failure Slip yokes & u-joints are lubricated with high temperature grease Brand new and fully assembled for simple out-of-the-box replacement Details: AAP UDA 4: 92.5 Application Summary: 2004-2006 Bmw X3 (Rear) (Liter: 3.0 & Engine(cc): 2979 & Cylinder: 6 & Block: L & Bore(in): 3.31 & Bore(mm): 84.0 & Stroke(in): 3.53 & Stroke(mm): 89.6 & Drive: AWD / Note: Rear Driveshaft Assembly 48.1 inch. Long Flange to Flange 49.3 inch. Long with the Rubber Flex Disc Adjustable Slip Yoke Replaces Oe # 26103402134, 26-10-3-402-134)