Maverick Strada MT Evo S Brushless Monster Truck
 

Hi everyone, i'm looking for some help with a recent buy.
I bought the Maverick Strada MT Evo S Brushless Monster Truck as it was a good price for the gear that came with it.
After taking it out for a spin, while running at mid to max speed it sounds fine and looks reasonable fast but at slow speed and revs it makes one hell of a clunking noise like it's skipping a tooth in the pinion gear.
If anyone else has notice this issue and has a solution it would be good to hear from.