Product Description: New 100 Series Economy Driveline with Friction Clutch. Driveline is size 6 and rated as a category 4 HD (64 hp) with 7 ft. lift/3-pt hitch. The drivelines minimum C-to-C length is 44" (1120 mm),maximum length: 67" (1710 mm), and total collapsed length is 54" (1365 mm). The tractor end is1-3/8" 6 spline yoke and the implement end is a 1-3/8" 6 spline FF2 7.87" friction clutch. FitsRhino Rotary Cutters. 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.