Product Description: Complete Constant Velocity Tractor Half. C-to-C Length is 48" (1210 mm), Tractor end yoke is 1-3/4"- 20 Spline. Tube style is B. Size: 2580. Replaces: Walterscheid No. W2580TR121003. Fits Ford / NewHolland Square Balers. 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.