Instructions:
Disconect the belt of your x-carriage-, Unscrew and remove the two top wheels of the hotend assembly and remove it. Press and/or epoxy the spacers into your direct drive extruder bracket. Reinstall the v-slot rollers and the direct drive extruder bracket onto the x-axis carriage. The bracket locks into place on the x-axis carriage kind of tightly. It may take a little force to make it snap into place. Install the extruder and extruder motor onto the bracket, but leave the screws loose enough for the motor/extruder to slide freely in the slotted holes. Cut a piece of bowden tube about 35mm long (this measurement may vary depending on your hot end/extruder setup) and insert between the hot end fitting and the extruder. Test the fit of the hot end, and trim the bowden tube a little at a time until everything fits properly. Reinstall and tighten everything that goes on your x-carriage- extruder, hot end, fans, auto leveling sensors, etc... Adjust the v-slot eccentric. Install and tighten your belt. It is necessary to extend your extruder motor wires and re-route them through the hot end braided sheath to retain your full print volume. I used a high quality headphone cable that i soldered and heatshrinked. The wires and filament need to be routed IN FRONT of the frame uprights, or you will loose Z height as there will be interference with the top cross bar.

After all that you need to install the ''Direct Drive Cable Chain Gantry Mounts'' you will need the female to female chain link for connecting the chain to the mount.

originals files:

reversed fang
https://www.thingiverse.com/thing:3091560/files

mount i modifyed
https://www.thingiverse.com/thing:4583495

original mount
https://www.thingiverse.com/thing:3589452

fang mount with abl
https://www.thingiverse.com/thing:3419869

Ender 3 Direct Drive Cable Chain Gantry Mounts
https://www.thingiverse.com/thing:4563903

Female to female chain link v3
https://www.thingiverse.com/thing:4630248

Also included the fusion360 file