So bit of an interesting story. Driving home in my G35 sedan 2005 when I run over a rock that came onto the road. Massive clunk, and a check engine light came on, and the car began to not start well. Got the engine tested and it read 2 crankshaft codes, meaning a likely faulty flywheel from the rock collision, right? Autozone has my flywheel for $950, but isn't that too much. New to the G35 scene and I just wanted to reach out to the pros here for the best thing to do in this situation. Also where should I get it fixed or is it an easy DIY. Thanks in advance, and sorry if this is too much!!