Hey, I have a F-150 Fx4, 2005.. So we had to go are breaks done at ford today and once they fixed the breaks and took it for a test drive a new problem randomly accured... The front Right end of the truck started making humming sounds going 30k-60k plus not 100% about highway speed. Anyway's does this around town etc, but when you put it into 4x4 HI it goes away completely but right when you put it back to 2WHL drive it comes back. HAVE no idea what it is, want to fix it my self cause too much doing all the repairs at Ford.

I figure when they were fixing the brakes they screwed something up in the process/ breaks only got fixed FL Tire.

Any and all suggestion's would be greatly appreciated! Thank you.