These axle sliders secure to each other with a 3/8 solid ali tie rod . I 10mm drill must be drilled through the small end of the axle ( 22mm deep it is just over 9mm id at the moment) which we can do here at F1E at no charge or a 10mm drill can be supplied if requested. The existing hole in the axle is only just under this size from the factory so strength is not compromised.