Jims Timken Case Bearing Conversion Tool Designed to easily and accurately convert the left-side crankshaft roller bearing OEM 24604-00D to the more durable Timken bearing OEM 6028 . Features: Insert is made from aluminum that is several times stronger than the aluminum case material the standard bearing rides in Includes a new steel bearing insert, a press plate to hold the bearing insert in line and all the necessary drill bits to drill the oil feed and return holes, hardware and detailed instructions Job can be performed with normal hand tools, a hand drill and a 2-ton press Timken replacement sleeve # 956 sold separately Made in the USA