Howdy! I am just about sick of working on my mp 7.5 rally! i went and ran it at the track and the spur gear was obliterated. It was the stock plastic one, the mesh was right, the bell just got WAY too hot and melted every tooth. So i ordered the $30 metal inferno gear and now have it on. I realized the problem though. There is no shims on the clutch bell and i cannot get the cap screw off, thus its threadlocked to the clutch shaft (or whatever its called) and the whole clutch/ bell assembly comes off the crankshaft, and i am not able to get the clutch bell off. Any suggestions before i blow it up? (just joking)