It could be a number of things. It could be the drive plate spindal hitting something every time it spins...
New CV joints will fix the grinding noise
The pump will need replaced if it is grinding.
I have the same problem if it was making a grinding noise contact ego-fly if its not making a grinding noise the rotors might be hitting each other
engine problems not trans.
Sounds like you need a water pump, The bearings in the water pump are making the noise not the pulley.
The bearings are damaged.
The expedition door lock relay could be stuck causing the grinding noise. Check to insure that the lock relay is working properly.
Your pads or discs are worn. The brakes will fail soon if not replaced.
Because cars aren't meant to fly
Yes they can make a grinding noise, if they are bad.
Check or have them checked immediatley. They are going to fail REAL soon.