Product Description: New Complete Batwing Mower Driveline with Clutch. Minimum C-to-C Length: 55" (1400 mm), MaximumC-to-C length: 71" (1829 mm), and Total collapsed length: 66" (1670 mm). Tractor yoke end is 1-3/8"6 spline, implemeny yoke is 1-3/8" 6 spline clutch. Replaces Bondioli & Pavesi No. 6140001FF2. FitsBondioli & Pavesi 100 Series. 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.