DO IT: Self-removing drive shaft grooves in15 min A recurring topic in this forum is the load-changing cranking of the drive shafts, which is noticeable when inserting a drive stage in the stand as well as during acceleration or also taking away gas.For all those who have no time for a workshop stay, or the warranty has expired, I have put together a Do it Yourself instruction. So everyone with some skill and tools can use this small, but !!! In case of damage and injuries I am not to be made stickable !!! ( should be called with the screwdriver the rim or stick itself in the fingers carries the responsibility ) Tool list ( see photo ): small screwdriver 3/8 inch or 1⁄2 inch gun corresponding extension ( approx.15cm ) for used gun type. 14er nut ( for used gun type ) Can spray oil Some tough fat