A few people asked about whether we would sell the shifter shafts independently. The answer is "yes" and they're already live on the site (linked from the kit contents section of the Ball Shifter page).
Short Output Shaft (w/ gears) -- as used in the 3-stage gearbox.
http://www.vexrobotics.com/vexpro/ge.../217-2793.html
Without gears... just the shaft:
http://www.vexrobotics.com/vexpro/ge.../217-2791.html
Long Output Shaft (w/ gears) -- as used in the 2-stage gearbox.
http://www.vexrobotics.com/vexpro/ge.../217-2792.html
Without gears... just the shaft:
http://www.vexrobotics.com/vexpro/ge.../217-2790.html
-John