Prusa i3 trapezoid thread Z-axis mod

These are the parts, I used to replace the Prusas M5 Z-axis rods by 8mm trapezoid thread rods.
It is made for 18x18mm (15mm high) - 8mm trapezoid nuts and a 5x8mm shaft coupling for a NEMA 17 stepper.
Because I use this antiwobble part and auto bed leveling, I removed the point for the M5 nut and the leveling screw.
I completely got rid of my z-wobbling problem this way.
Keep in mind to adobt your printer firmware.