jayjay It's all metal inside and outside. There is actually no differential here, it's just an axle shaft with a crown gear, so acting like a locked differential

jayjay Yes it does fit with the stock esc. May need to cut the body a little bit (inside the battery tray) to fit it, though, as the top part protrudes into the body a little. Works best with metal driveshafts, may not be compatible with the stock plastic ones

jayjay for steering I use a 17g servo without any issues. you can mount the servo on the top or bottom side of the servo tray, depending on the build. I built a WPL C54 on it with the servo on the bottom side of the tray.

jayjay should work with stock electronics

jayjay Il fonctionnera avec WPL C-14 avec quelques ajustements

jayjay No it comes with plastic driveshafts and axles, however it can be upgraded easily

jayjay It can be set to work in night only, or day+ night according to requirements (adjust the light sensor)

jayjay It is not waterproof, you need to do some waterproofing before it will run in water.