I've got the Scorpion diff compatible gearbox made ,it still takes the stock Yoke diff so that makes things simpler ,its now installed so we'll see how it works , the only failure point I can see is the screw holes , they leave it a bit thin but there's a 2mm collar on the other side that's not got holes in so I'm hopeful , I'm starting testing with a brushed motor , if all goes well I'll try brushless later .
Unfortunately the weather has become very English so testing has slowed down , the grass grows fast and its too wet to cut it