Looks like a tooth came off in the transmission. Already bought a spare transmission and case splitter/crank puller to split the cases (for the first time, wish me luck!) and am buying gaskets now. This thing has very low hours and the motor runs just fine with no leaks. Three questions: 1. What size flywheel puller will I need? I have a M18X1.5 R.H from Motion Pro, but haven't been able to identify if it's the right one. 2. Will I need buy an oil seat kit to replace all the seals while I'm in there? 3. I should only need to split the case to replace the transmission, not pull the entire crank, correct? Thanks in advance.