This is a 6.6 liter Duramax diesel V8 steel crankshaft. The engine developed a knock that kept getting louder. After the engine was disassembled we found the number two main housing bore is a bit damaged so we suspected the crank was cracked. It didn’t break but it’s close to it. The crank is cracked at the first rod journal as well as the number two main journal.
Motor Mission Machine & Radiator 5435 Desert Point Dr. Las Vegas, Nv. 89118 Ph: (702) 649-2366 or (702) 649-0648 Fax: (702) 649-4133 www.MotorMission.com Facebook.com/MotorMission