Install:

• Remove 2 left screws on permanent plate
• Replace left 2 screws that mount permanent plate with M3x12mm
• Put flat head screwdriver behind carriage and printed part to make sure flush fit and proper screw insertion.

Configuration (If using default mutant Ender3 install hot end and holes)

• x_offset: -50
• y_offset: 6.5

Then calibrate your z_offset, (it should be around -3)