Maisto Rockzilla Wheel Hub Replacement

I made this as a fix to my son's RC monster truck that seems to be very prone to breaking at the wheel hub where the drive shaft connects to the wheels. To make the part work, it was printed at a resolution of 0.1mm (although lower resolution would still work) with an infill of 80% on a Makerbot 5th Gen in PLA, although I would of preferred ABS or tough PLA. Be sure to lay it flat to ensure the layers of plastic run horizontally for strength. Once printed, the metal shaft was inserted after dril