Evader st pro problem

[swarmjt]

got an evader st pro.. for some reason it is acting like someone has a light switch and u keep flipping it on and off at different intervals.. i just put a new ESC on it and it started doing it.. i swapped esc's back to the old one and it still does it.. any ideas?

 

[swarmjt]

it is doing something different now... the engine turns, the spur gear turns, but the truck dosn't move?????

 

[swarmjt]

figured it out..stripped diff gear