When you look at that diff case tree you realise that you will have to remove the topdecks to access the gearboxes...
8-10 screws to access gearbox then.
Motor mount/bulkhead is different, not same as shown on CAD-drawings. Maybe better?
As mentioned before, the plastic center bulkhead and the spur gear cover probably means that they will make a base model. Told you so...
