Maybe a center diff setup once he gets the 4X4 operation in place, or even a duel kevlar belt drive system would work well, and even give it some slippage to reduce the load from the rest of the driveline. Where there is a will there is a way. This guy sure seems determined to accomplish his goal, and from the looks of it he has the resources as well. I believe that we may see quite a nice 1/5 scale Monster Truck within a reasonable amount of time. It would sure be nice if more of us could afford this type of arrigance. Not that there is anything wrong with that??? This is going to be good.