Product Description: Complete Constant Velocity Tractor Half. C-to-C Length: 48" (1210 mm), Tractor end: 1-3/4" - 20Spline. Tube Style: B. Size: 2580. Replaces: Walterscheid No. W2580TR121003. NOTE: It may benecessary to cut this driveline to length. Verify the length by ensuring that sufficient overlap ofthe drive tubes exists in all working positions without the possibility of bottoming out. FitsWalterscheid WWE & WWZ Series: 2580. 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.