Sounds like the bearings on the fan are going out. You may need a new fan if its making a scraping noise. Another over looked item that causes overheating is the lower radiator hose. It can collapse on itself and not allow flow therefore overheating. Had it happen once and i installed a spring inside the new rad hose. Besides that radiator could be a cause however sounds like the fan is the culprit in this case
1996 Mustang GT, 17x9 front and 17x10.5 cobra r replica rims, 255/40/17 front 285/40/17 rear at the moment,
o/r x-pipe flow master 40 series dump downs, cai/ram intake, 75mm c&l throttle body and plenum, pi heads and intake swap, msd wires, stock gears, untuned at the moment, no dyno numbers for now.