Dual Z Axis Lead Screw Upgrade Kit 42-34 Stepper Motor 365mm T8 Lead Screw for Creality Ender-3 Ender-3S Ender-3 Pro 3D Printer

Ok, so I managed to give this kit installed despite that it came with no instructions, not even a link to a youtube video. These kits vary greatly between sellers, so the instructions for one might not be the same for another. Definitely removed one star for that.That said, I would've only given this 4 stars as it doesn't have a timing belt to keep the belts in sync. that means that it works great when the x axis is alligned, but because there's no timing belt, it frequently gets out of sync and requires leveling the x-gantry (not the bed) on almost every print. Would recommend spending more and getting one with a timing belt along the top.