Originally Posted by adamym

Besides the electronics the kit is race ready from the box setup. The metal gears are for those that want some ease of mind with their diffs. I've had my rear diff blow out, but it was also leaking and my slipper set too tight. Other than that my rebuilt rear diff doesn't leak anymore and I have had complete success with it for now.

Just make sure to follow all of the preparation steps when building the kit and build your diffs right. I also did the cvd mod with the axial parts.