One New Aftermarket Replacement 9 Inch Spring Loaded Trans Disc That Fits Allis-Chalmers Tractor Models: B, C, Ca, D10, D12 Crawler Models: Hd3, H3 Spline Diameter 1.250" Spline Count 24 4-Button Replaces Part Numbers: 70248239, 5328Fe, 70246660-Ro, 70246660-R4B Ra All OEM part numbers and logos are to be used for identification purposes only