I dropped a valve in my 2004 wr 450. It messed up the head and piston pretty bad. However the cylinder looks to be in pretty decent shape. A couple of nicks high on the cylinder. I am going to have a company that resleeves cylinders have a look at it. My Question is whether I need to replace the rod and crankshaft? If I don't have to split the case I don't want to. Any advice would be helpful. Thanks. PS great forums learned alot.