This 39" complete PTO driveline spline with QD on both ends and a slip clutch is a perfect fit for a variety of heavy equipment, including combines, tractors, and harvesters. It is compatible with universal, John Deere, Caterpillar, and Case equipment, and is designed for optimal performance and durability. Whether you're looking to upgrade your equipment or replace a worn-out part, this high-quality aftermarket spline is a great choice.