I had my stock T-maxx clutch system on my OS .18 and I am trying to remove it right know. I got everthing off except for the flywheel. I can't get it off becasue there is this black thing that i think screws into the crankshaft. I tried using pliers but I dont want 2 break the crankshaft. Anybody could help me figure out how 2 get this off safely ???