Product Description: Complete Constant Velocity Driveline. Minimum C-to-C length: 48" (1210) mm; Total Collapsed C-to-Clength: 58" (1462 mm). Tractor end: 1-3/8" 21 Spline. Implement end: 1-3/8" 21 Spline. Star styletubing Type B. For 2580 series. Replaces Walterscheid No. W258012100202. Fits Walterscheid WWEseries. 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.