pic: 4587 Wheel and Chain in Tube Drive

[Cash4587]

live axles, with all of the cots parts available now days, it makes the most sense and it's easier to assemble in my honest opinion requiring less parts and bolts assuming you replace the parts I've used with similar vex parts.

Also the cool thing with a 3 stage ball shifter gearbox is that the third stage actually isn't "part" of the gearbox the way it's assembled makes it fairly easy to mount the gearbox. Additionally given the good track record vex parts have had I don't expect much maintenance ever to be needed, only in worst case scenarios which can't be avoided.