Poor straight line steering control

[Tamiya Cowboy]

I dont have any issues with that on any of my trucks..Like Neil said you need + camber or toes in some plus I run traxxas ball ends and not any of the snap ball ends that come in the kit but I dont think that matters much I just like it but one thing that does make a huge difference is... I run a Hiteck 645 servo on both steering and shifting and I do not use the stock servo horns I used the round black horns that come with the 645 servos..