Product Description: New complete driveline. Tractor end has 21, 1-3/8" splines. The implement yoke has 1-1/2" round bore with keyway. The clamp bolt is included. This is a complete replacement, components from originalwill not interchange. Fits Case-IH and Hesston mower conditioners. Complete Replacement - Components From Original Will Not Interchange. This item must be cut to length.