[Vehicle Fitment-1]: Compatible with Chevrolet Silverado 1500 1999-2005 V6 4.3L // Silverado 1500 1999-2005 V8 4.8L // Silverado 1500 1999-2005 V8 5.3L // Silverado 1500 2004-2005 V8 6.0L --- Rear; 4WD; Automatic Transmission; with 119.0 inch Wheelbase. [Vehicle Fitment-2]: Compatible with GMC Sierra 1500 1999-2005 V6 4.3L // Sierra 1500 1999-2005 V8 4.8L // Sierra 1500 1999-2005 V8 5.3L // Sierra 1500 2004-2005 V8 6.0L --- Rear; 4WD; Automatic Transmission; with 119.0 inch Wheelbase. [Reference Number]: 65-9529, 659529, 15109400, 15163798. If you are not sure whether it matches, please take a photo of the frame number before buying and send it to us for confirmation. [Advanced Coating Process]: The drive shaft features a superior and durable coating that effectively protects shafts from premature corrosion. Incorporating new universal joints, sliding yoke, shafts, and other components ensures a job well done in terms of performance and longevity. [Easy Install]: This drive shaft is manufactured to match the original equipment dimensions, ensuring a reliable fit and optimal performance. Engineered to provide OEM fit and finish, facilitating a straightforward and easy installation process. [High Quality]: Each shaft is measured and straightened to guarantee high-quality performance. All slip yokes are lubricated to prevent premature wear, ensuring optimal performance. [Dedicated to Your Satisfaction]: We are committed to providing you with the utmost satisfaction. Our comprehensive after-sales service is at your disposal. Should you have any inquiries or require assistance, please don't hesitate to get in touch with us. Your contentment is our priority.