Another common source of high-pitched noise in a garage door is a bad end bearing.
You definitely want to take care of this, because if a bearing seizes it can cause catastrophic damage to the door assembly.
How To Replace End Bearing Plates
DIY-Garage-Door-Parts produced this excellent DIY tutorial that shows how to replace the end bearing plate assembly for your garage door.
- ratchet set (7/16″ or 1/2″ )
How To Replace The End Bearing Itself
DDM Garage Doors put together this handy illustrated guide on how to replace the bearing within the end bearing plate.
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