pic: DeWalt Gearbox with two CIMs

[MAteo9944]

Originally Posted by Greg Needel

Now there are other things to consider like gearbox inefficiencies and other losses but for all intensive purposes you can pass the water around all day but in the end you are still left with the same amount of water.

Another thing that you hinted at was that if you have 4 transmissions, if some of your wheels lose grip or leave the ground then you suddenly have less torque available. (If your wheels are leaving the ground during a pushing match you have other problems.)