This is the Mugen Driveshaft Pin Replacement Tool. This must have tool will press in and remove any 3mm pins from the head of the drive shafts on all Mugen MBX5, MBX6 and MBX7 vehicles. Now instead of replacing the expensive drive shaft a simple replacement of the pin is quickly done with this Pin Replacement Tool. By using the appropriate length pin, and the Driveshaft Pin Replacement Tool, you can dramatically extend the useful life of your drivetrain parts.