Well your belt idea is good and you might be able to find a very thin small o-ring at the hardware/auto/motorcycle store.Making a pulley for the shafts would be easy.
The more I look at mine and think about it the more I realize that there is not a whole lot of useable extra space on those trucks.
I'm still trying to decide on either a 4ws/4wd solid axle or a wider 2ws/4wd independent suspension truck.
has anyone checked to see if the ZZ/se steering motor pinion would mesh with the ZZ/mt steering lever arm?
I just want a micro truck that can handle that little obstacle course in the picture.
an obstacle course