Fits Ford / Newholland 233, 256, BSD442 Crankshaft Remachined 20/ST Rods & Mains 4 Cyl 81804029, 81873978, 81874001, C5NE6303K, F0NN6300FB 5000, 6000 & 7000 series Includes balancer drive gear with ?W? style teeth. Check balancer drive gear to determine Early (78-Tooth) or Late (76-Tooth) Damaged New Stock * Flange: Centering Ring, 6 Bolt Holes, 1 Dowel Hole * Snout: 1 Bolt Hole, 1 Key-way * Stroke: 4.203" * Rod Journal: 2.7496-2.7504" * Main Journal: 3.3713-3.3723" * 5 Mains * With 78 Tooth Gear * With Helical Gear