Hello all front end question

[JoshF]

I have a 2009 Ford Expedition EL 2x4 with about 110,000 miles. i have a question. My expedition is make a grinding noise coming from front end. I checked the steering fluid it’s good. I just replaced both wheel hubs. It’s still doing it only between 25-30 mph while driving/rolling. Have googled it and all I can find is it’s could be a IWE leaking. But these are only on 4x4 trucks from what I can see. I was wondering if you had heard of this before or maybe somewhere to check. Also the front brakes are damn near brand new. Lost at this time any help will be great thank you.