Ah yes... I went through four of those little bastards.
I realized that the bearing on the counter gear shaft was seized that was
the begining to the end of the problem.
I found that I stripped the gear in high stress situation. eg. full
throttle 180s knocked out two gears and WOT landings wrecked the other two.
Back off the slipper clutch a little. Since I have done this I have not had
any gears wrecked.
You can also look for a metal gear replacement - Traxxas has one that is
exactly the same gear but is made of some "steel". The only downfall to the
metal gear is something else might strip - maybe the spur gear (on the other
hand, a spur gear is a lot easier to replace than a counter gear).
Finally, check the other two gears in the *** and BE SURE there are no
foreign objects embedded in the teeth. I pulled a very small bearing from
the counter gear bearing out of one of the other gears.
Hope this helps...
You can e-mail me if you have any other questions.
> > I have an ST but have forgotten which gear is the counter gear? Let me
> > as I believe we have had the same problem.
> the middle one inside the gearbox e.g. between the one attached to the
> and the differeantial