Product Description: 2580 series Complete Constant Velocity Tractor Half Shaft, type B. Minimum C-to-C length: 48" (1210) mm; Total Collapsed C-to-C length: 58" (1462 mm). Tractor end: 1-3/8" 6 Spline. Implement end:1-3/8" 6 Spline. Star style tubing. Fits Vermeer Disc Mowers; Woods Rotary Cutters; Walterscheid WWE 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.