If you use that you will loose a lot of power and space. I did try to build something like that but it did not prove.
I like it
October 23, 2012
Nicely done! @ George Staples, while it may seem more efficient this system allows you to use both motors to drive both tracks at the same time, so if one track comes across a slight incline, having the second motor connected will actually double the available power. Its genius! @ Sebeus, I think they generally have one motor with two clutches driving each separate track. :)