CV Centering Yoke Repair Kit by Rockford Driveline®. 0.511″ Inside Diameter Ball. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an affordable cost Designed utilizing the latest technology, this product by Rockford Driveline features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed stringent industry standards.