John Deere JD Late 6.466, Early 6076 Crankshaft Reman R63451 20/10 Rods/Mains

John Deere Late 6.466, Early 6076 Crankshaft Reman 20/10 Rods & Mains 6 Cyl Diesel Forg # R63451 Early model 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". Forg # R63451