Truck makes loud unusual motor noise and won't move

[Jaxty]

So I was driving my Ruckus Brushless 2WD in the sand the other day and all of a sudden it stopped. The motor was making a louder, more grindy kind of noise and the wheels barely turned. I took it home and opened it up, and all the gears were intact. I'm guessing it's a diff or a motor problem, but I'm not sure. I don't want to buy a new motor unless it is really necessary. Help please!

 

[nimbuzz]

Sure sounds like the most common bad spur gear but if that's Ok why don't you look into the diff? If it's all greasy spray it off outside with WD-40 or something and tell us what you found. Check your slipper too. Take the pinion off and see if just the motor makes the noise. Keep looking = you'll find it.

 

[sc302]

I would look at the differential gears. If they look ok and you can run the wheels without grinding, I would look at the motor.

Spin the wheel individually, then together and see if it binds. Take the motor out before you do that.

 

[Aero1987]

I had the same problem.. are you running stock Axel's because I was running stock Axel's and it was spinning in side the hub the end that attaches to the wheels