John Deere JD Late 6-466, Early 6076 Crankshaft Remachined R63451 Early 6076

John Deere Late 6-466, Early 6076 Crankshaft Remachined 10/10 Rods & Mains 6 Cyl Dsl R63451 Early 6076 engines prior to serial # 187,657. Late model 6-466 engines with oil pump drive gear located on crankshaft in front of the # 7 main. Timing gear surface width is .700".