Product Description: New CV (Constant Velocity) Driveline Assembly. This is a complete driveline replacement, componentsfrom the original will not interchange. Drive is a 4 SFT CV free rotation with shear bolt clutch.The tractor yoke is 1-3/8" 6 spline with quick disconnect collar. The Implement yoke is 1-3/8" 21spline threaded pin shear bolt. The C-to-C length is 51". FitsFord / New Holland Round Balers. Complete Replacement - Components From Original Will Not Interchange. It may be necessary to cut this driveline to length. Verify the length by ensuring that sufficientoverlap of the drive tubes exists in all working positions without the possibility of bottoming out.