Originally Posted by TB03Racer09

racing4evo, I must be lucky, the cf reinforced chassis that came with my tb04 pro v2 is perfectly flat, if I put it on a piece of glass is doesn't rock at all. The way you install the chassis stiffeners is very important though, you should push the chassis against a hard flat surface then screw it on, doing half turns towards the end to evenly tighten the chassis.

ic-racer, what motor are you running? I have the hw xerun v10 21.5t in mine, geared at 3.51 (52/73), motor timing 40deg and only gets slightly warm after 6 minutes (although it is winter). I haven't seen any gear charts for this car yet.
How did you strip the diff? Was this using a 21.5t motor?