check the guard behind the rotors could be rubbing
it sounds like your sprag in the tranny is starting to ware
A small child
The pump will need replaced if it is grinding.
your barrins in the wheels
Its usually a U joint. Click under acceleration . While turning,a CV joint. Grinding or moaning is usually a bearing.
The grinding noise in the front of a 1990 Dodge Caravan could be a cv joint. If it is, it probably only grinds when you take a sharp turn. There is one located on each side.
Bearing going bad?
It Will probably be the amont of weight that that causes the wheels to rub against the wheel arch
Have you look for dirt and water in transfer case, pumkins? drain the oil and add new in the pumkins takeoff inspection plate look to see what is going on. This will save you money especially if you can fix it yourself. Grinding noise sounds like the linkage is not adjusted correctly. check joints in front drive shaft
it could be a rock or your cars not funny
Sounds like a brake problem. Need to pull wheels and check the brakes.
Yes they can make a grinding noise, if they are bad.