[sanddrag]

Is anyone using these for their drive motors and shifting them? I wondering if you use one on each side, will they simultaneously shift with the servos? What if you use four, one for each wheel? Will all four shift simultaneously?

Also, can a flex coupling (lovejoy) be placed on the end of the shaft? Will the threads in an aluminum one strip out?

Last, can the Chia gear be reamed on a manual lathe (with a proper reamer of course) instead of EDMed? If so, what size reamer would you recommend (considering the lathe is old and probably not incredibly perfect anymore).