does anybody know the reason why my truck does this?

[hoovhartid]

yeah.

I guess my main point was to see if all 4 tires were giving the same about of torque under load. I suggest putting the truck up on something with the wheels suspended(free to spin). While the trigger is being pulled (lightly...if you are by yourself you can try to turn up your throttle on your transmitter till the wheels just start to spin)anyway--if one wheel is easier to stop than the other three, then that is the wheel that is spinning slower and causing you to veer off under throttle.

by the way..don't hold the wheels so tight that you break anything...i merely meant for you to find a part that may already be broken