Tamiya gearboxes

[jerry56]

I used them in the delta loader and the D5.. I haven't used mine much but so far so good...
You have to make sure you shim the crown gear into the motor spur gear so there is as little play as possible.
Now that there are 25Kg and 35Kg CR metal gear servos on the market in the $10 range on Aliexpress plus Servo city has a couple in the $30 range I would probably go that route if I have to rebuild mine.