here is my idea of using dual 1500 kv motors connected through a differential so they can each run at their own pace at the same esc settings but still give all they got to the wheels.
gearing is two 14t pinions four 52t spurs and two truggy differentials.
i have already bought most of the components needed for the gear setup and im working on a mock up of the gear carrier frame.
and the upside is that i have always wanted to put a mid differential in there.
by using mid differential there will be allot less stress on the front and rear diffs while crashes and this setup should be allot stronger than the original gearbox setup and it all uses the same bearings as are used at the wheels so it should be plenty reliable.
here is a quick sketch up of the concept.
the bearing carriers for the spur bearings (blue) are not drawn in at this point and the diff bearings are hidden under the grey carrier plates.