gears are fine. It locked up while driving at 60 with an empty trailer. I know it locked up cause it peeled the companion flange end cap back like a banana when it broke off wasnt just a thrown joint. I believe a bearing just got to hot and locked upBummer. It sounds like the bearing locked with the output shaft. Is that what you mean or could the shaft rotate freely? From the pictures, it looks good. No sign of wear on the gears.