thats a good part for racers who wanna be able tro easily switch from a solid diff, to a one-way to ball, ect. But becuase im drifting, and using this car for ONLY drifting i dont care if its a pain in the ass to change it back, becuase im nevee gonna do that. I know theres a way guys lock diffs using glue, or other substances, and i just wanna know how to do it.