It does work with CA Ver. 3 gearbox, but not work with CA Ver.2 Gearbox. It also works with JG, echo 1 Ver.2/Ver.3 gearbox. Just do not install the 2 pieces of stainess buses for the Bevel Gear (or Spur Gear) when use on JG, echo1 gearbox. It's not effect on the performance. This is because that there are 2 kinds of bushes in the modular gear set:
1) tempered stainless bushes ---- with double grooves, Material: Stainless steel / Thermal Treatment
The tempered stainless bushes are fixed to the bracket as a part of modular gear set (it is not rotated together with the gear shaft). This fe
