The Spicer 5-134X U-Joint is a greasable component designed for converting between 1310 and 1330 series configurations. Weighing 1.20 lbs, it features a cap size of 1.062″ and supports the following dimensions: 1.062″ x 3.219″ for 1310 and 1.062″ x 3.619″ for 1330. The lock-up dimensions are 3.219″ x 3.625″, ensuring reliable power transfer and durability.