[zachrobo1]

Even if you rotate it, you would still need to machine it in some way. The native slot only is 2.195 inches from the center of the large hole, while the screw is 2.25 inches away from the center of the output shaft (which sits in the middle of the large hole).

Turning the gearbox would make machining easier, and get rid of the weird hole pattern. Of course, on the other side you would have to machine a hole higher up, but that might clear the other predrilled slots/holes and be more preferable.