I drive the Tc02 with the gear diff, but i find the spring too hard and too long.
So i try to use the spring of the save servo, it was more soft and more short.
Left original one, and right the save servo spring.
This is more good because the car don't do weeling every time, but it's not enought. I would like to find one more stiffer than the save servo and more short than the original one. If you have an idea.