Just wondering if anyone knows the answer to this. I have a 2007 RMZ and a brand new 2006 Crank. The splines are different on the transmission side. 06 is a 10 tooth and the 07 is an 18 tooth. I'd rather spend the $40 plus on the 06 gear for the trans side than buy a whole new crank assembly but have know idea if the cranks are compatible i.e. the same stroke, flywheel, woodruf key and if the gear for the trans side is the same dimension on both aside from the splines. Any help would be greatly appreciated.