Ok, so i got some tie to mess with my transmission in my slash with rustler. After messing with gears i ran into a problem. When i screw my pinion gear back on the shaft, it seems like it sits there stable, but when i run my motor that little screw in the pinion gear always get unscrewed, i hate it because i cant even get 10seconds out of my trucks, that pinion gear always falls off. I have heard that you can use some sort of liquid or w/e to make it stay there (not glue).
So what do you guys use for that ?
(screws are in perfect condition, i even bought new pinion gear and tried that, still falls off)