Loud squeaking sound coming from the wheel area, but only after driving for sometimes and more than 60MPH. The noise sound like a loud squeaking brake, but I am not braking...
If you have factory mudguards, the fasteners that hold them on to the bracket could have been knocked out of place.
I experienced this problem a few months ago when I back up into a pile of snow. I must have backed up to the point where it dislodged one of the fasteners that fastened the mudguard to a bracket.
All I did was put it back in place and the squeeky sound at highway speeds went away!