Have this and possibly another two to choose from but they have not had the covers removed yet so condition is unknown at the moment. Had the same issue on my current G14 but re-built the gear like Chev 29 did. So far so good but the box is noisy with the gears meshing. I've overfilled the box with oil as the level the gear train runs is to me too low and hence is significantly quieter. I also have a magnet glued to the drain plug and change the oil every two hours of running. The debris I weigh each time which shows the box after the repair is bedding in.
The one I have is not ideal but it works. Welcome to it if you want it.