MWaz Get off your duff challenge

[twilight]

So here's my theory, some kind of crud got into the gearbox in the area of the worm shaft and bearing. Causing bearing to seize and begin to spin and scoring the gearbox. Notice groove near end of yellow stick.


Here is a comparison between a brand new gearbox side and the one that failed.


This is the worm shaft that was in the gearbox. Bearing on right is all scored and has some discoloration on it.