Product Description: 100 Series Driveline Assembly. Driveline minimum C-to-C is 41" (1041 mm), maximum C-to-C length is62" (1560 mm), total collapsed length is 48" (1210 mm). Tractor end: 1-3/8" 6 Spline, Implement end: 1-1/2" round bore with 3/8" keyway. Rated as a category 4 (64 hp), size 6. Fits Bondioli & Pavesimodels. 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.