Product Description: Header Driveshaft with Hex End Yokes. C-to-C Length: 24" (610 mm). 1-1/8" Clamp Yoke, 1-1/8" HexSlide Collar. Fits John Deere Combine models; Walterscheid W Series. NOTE: It may be necessary tocut this driveline to length. Verify the length by ensuring that sufficient overlap of the drivetubes exists in all working positions without the possibility of bottoming out. 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.