Ford Repair: Front wheels squeal on 96 4x4, ford bronco, wheel assembly

Question
James,
I have a 96 Ford Bronco that makes a whining or squealing noise between 10-30 mph.  I recently (1000mi ago) had a front brake job done by Ford.  They installed new rotors, pads, bearings and grease seals.  I have had this noise in the past and was told it was the grease seals.  I had them changed and it did solve the problem.  My issue is after the recent brake job the Ford dealer offered no warranty on the work as they had to use non OEM parts.  Is there any danger driving the vehicle with this noise?  Could it be the grease seals and is there a way to solve the problem w/o pulling the front hub and wheel assembly?  Thank you for your time.

Answer
There is a lesson to be learned here.Never go to a garage that does not stand behind the parts that they install.You're nightmare is a reality.The seals need to be replaced.The danger depends how bad the leak is.The catch 22 is that you can only find how bad by inspecting with the hub removed.