More likly belts,,any power loss? Smoky exhaust?
But go to either Powerstroke.org or PowerstrokeNation.org
95 OBS PSD owner 235.000
not a belt. No smoke but it smells like hot oil after a short run. Some power loss. It feels like the turbo bearings are going out if I had to guess but this is my first turbo issue. The squeal has a vibration with it that reminds me of pumps needing bushings