The 6.3-4-821-1 yoke is part of the 1760 series, designed for heavy-duty applications. It features a spline count of 46 and a spline diameter of 2.390 inches. The hub diameter measures 2.875 inches, while the through hole has a diameter of 2.750 inches. With a centerline to end distance of 5.500 inches, this yoke is constructed in an HR style and manufactured by Spicer, ensuring durability and performance in demanding environments.