Just a thought but maybe my issue is the front diff. It seems as though the diff fluid is too thick because when you turn one wheel, instead of turning the other wheel the opposite way it turns it the same way and also turns the drive train. It is not a locked diff, if I turn it very slow it turns the other wheel the opposite way. I bought this car barely used and assembled on eBay. Every used car I buy has friggin' issues! Steering, Drivetrain-Diff's, Overheating ESC's-Motors, Nitros never ever, ever, ever, run right (I don't care if it a Nova, RB, Picco, Lrp, I have bought every lemon there is) etc etc etc... I just want a decent friggin' car to finish a race once in a while.
BTW I did win the Polar Cup Paved Championship series this past weekend with my Kyosho GT2 Mamba Monster with my special Icky Sticky tires. That was the second car I ever bought and it was my third backup, good thing I brought it along...