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For this job you will need a number of sockets, pliers, picks, wrenches, and a laptop loaded with forscan and an obd2 to usb connector. Links are below. Let me know if you have any questions.

Link to walkthrough

https://www.f150lightningforum.com/fo...

Parts #

Wire harness
pl3z14631g
https://www.tascaparts.com/oem-parts/...

Gray door handle with correct wiring
ml3z1522405dcptm
https://www.tascaparts.com/oem-parts/...

Black door handle with cutout but incorrect wiring
m2dz7822405cb
https://www.tascaparts.com/oem-parts/...