http://www.chiefdelphi.com/media/photos/26104
There is the updated version.
This gearbox is mostly me just throwing ideas around. I like the ease of a prepackaged 3 speed gearbox in the Dewalts, but I wanted to use two motors per gearbox for torque.
Without the motors the gearbox is just under 2.5 lbs. More weight can be removed though if necessary.