Case 251, 267, 284, 301, 336 "Small Main" OEM Crankshaft Remachined 20/20 Rods & Mains 4 Cyl Diesel 010700, 010700AB, A22578, 966772, A166001, A155438 Main Journal: 2.999?. Place for detachable gear by center main. * Stroke: 5.000" * Rod Journal: 2.7480-2.7490" * Main Journal: 2.9980-2.9990? * 5 Mains * With 1 Helical and 1 Straight