USA Standard Gear driveshafts are built new from the ground up, not remanufactured, to provide decades of reliable use. Many components are upgraded from OEM to eliminate known issues. Units arrive fully assembled and ready to install. Nominal length 69.37 flange to flange Collapsed length approximately 68.25 flange to flange Extended Length 70.8 flange to flange Two-piece, rear Brand new and fully assembled for simple out-of-the-box replacement USA Standard driveshafts are strengthened over common Oe shafts to prevent Oe failure All units are dynamically balanced at 3,000+ Rpm for vibration-free driving New universal joints, slip yokes, shafts and components ensure a long life USA Standard Perfect Fit driveshafts are guaranteed for proper fitment and easy installation Features and Benefits: Nominal length 69.37 flange to flange Collapsed length approximately 68.25 inch flange to flange Extended Length 70.8 inch flange to flange Two-piece, rear Brand new and fully assembled for simple out-of-the-box replacement USA Standard driveshafts are strengthened over common Oe shafts to prevent Oe failure All units are dynamically balanced at 3,000+ Rpm for vibration-free driving New universal joints, slip yokes, shafts and components ensure a long life USA Standard Perfect Fit driveshafts are guaranteed for proper fitment and easy installation Details: AAP UDA 4: 65 Application Summary: 2000-2004 Toyota Tundra (Rear) (Body: Extended Cab Pickup, Standard Cab Pickup & Liter: 4.7 & Engine(cc): 4663 & Engine(ci): 285 & Cylinder: 8 & Block: V & Transmission Control Type: Automatic & Drive: 4WD / Note: 2 Piece Rear Driveshaft 4.7L A/T 4WD Overall Collapsed Length is 69.4 inch. Measured Flange To Flange Replaces Oe # 37100-34051)