I have bought my miniZ some daies ago. I don\'t know now if this problem is recent or if it always do it, but the fact is this:
I f i go slow, very slow, it turns left and right in the same way
When i speed up, the more i accelarate, the more difference there be from left to right. Turning left isi easy and take a certain angle, turning right needs much more angle, the duble space. I haver finally noticed it when we have to stay into the carpet track we have done, using the soft tires.
I think it is a problem of differential. I\'m in right? wich one to buy? they seems all the same, but prices go from 18 to 32$.
from my experiences, i would say it would be your differential... however, it all depends if u have a stock differential or a ball differential... if u have a ball diff. all u need to do is to just play around w/ it bit (tighten or loosen is to you liking).
as for what kind? i use the gpm ball diff. to me theyre all pretty much the same, just the name is different.