All the more reason to install metal gears and pack the tranny with some kind of high speed bearing grease so there is no drifting of the gears to cause such a terrible sound

. Sorry for your loss, but that is how we learn what not to do, right???

I hope you can get it back together quickly and get back to having fun.

If your quest is for more power then the MFR's design, then we have to improve the drivetrain in order to avoid such disasters. Brushless systems give quite a bit more kick on take off then nitros do, hence we need more beef in our tranny's, drive shafts, Diff's, and axles. Just my opinion