I am new to the nitro world, I just got a used Tmaxx 2.5 with OS18 engine I ran it 10 minutes then it stopped moving, engine runs great just wont move all shafts and everything look fine. What could be wrong?
One thing to check too is your engine mount...I know it sounds messed up but mine had stripped bolt holes in the back and the engine was moving forward when I hit the gas, not engaging the slipper clutch enough to move the truck...although mine had a grinding sound as well.