Originally Posted by wheelz

the 3mm offset wheels are modeled for the foam (pit) style tires. I think only tamiya stock wheels and perhaps ride wheels may work with the stock tamiya rubber.

Typically you want the chassis level front to rear at ride height. if the car is too low, the chassis will be bent in the shape of a "V". if the center is too high it will invert and be "^". You can set the front ride height where you want it and then adjust the center shock up or down to make the rest of the car level.