Report as inappropriate

The point is the original Y-axis mount/motor/pulley/endstop are still used and besides the printed parts you only need to change a few screws (and I mention which ones). But if you like to nitpick: I said parts, not screws, so I think we can all agree that more than 50% of all original Ender 3 parts are still in use after this modification ;-)

If using the screws I mentioned is an issue, you should check out the nice make by vampyrex13 who added some recesses to be able to use shorter screws (still longer than the original, but maybe easier to find)