Product Description: New CV (Constant Velocity) tractor half shaft. C-to-C Length is 48" (1210 mm), Tractor end has 21,1-3/8" splines. Tube Style: B. Size: 2580. Replaces: Walterscheid No. W2580TR121002. Fits Ford / New Holland square baler. 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.