Product Description: Rotary Cutter driveline with FF1 friction clutch. 100 series, category 3 (33 hp @ 540 rpm), size 4driveline. Minimum C-to-C length: 35" (885 mm), Maximum C-to-C length: 52" (1310 mm), Totalcollapsed length: 45" (1130 mm). Tractor end: 1-3/8" 6 spline, Implement end: 1-3/8" 6 Spline FF17.09" friction clutch. Driveline is a pull/tow type. Fits Bush Hog 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.