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. 39.5 inch. overall length 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: 39.5 inch. overall length 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: 55 Application Summary: 1993-2005 Mazda Miata Base Ls (Rear) (Aspiration: Naturally Aspirated & Transmission Control Type: Manual / Note: USA Standard Rear Driveshaft 39.5 inch. Overall Length 1.378 inch. Transmission Slip Yoke Diameter Replaces Oe# MF04-25-100 & MF04-25-100A, New USA Standard Rear Driveshaft 39.5 inch. Overall Length 1.378 inch. Transmission Slip Yoke Diameter Replaces Oe# MF04-25-100 & MF04-25-100A)