I have a 2020 F150 screw. At about 100k miles both front and rear diff needed rebuilt; luckily work covered under Ford extended warranty.

Now I have a vibration in the steering wheel. Ford had the driveline balanced to try to fix the issue, tires balanced; everything seems to check out. I asked if it's possible the parts replaced in the front diff were bad; they said no.

What the heck could be going on? Truck has been at Ford going on 4 weeks now.