You can see it here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE--r8dsK9KydM.html It is also made similar to scania, however this time I used prefabricated gearbox (not just worm gears on engine and wheels axles). Trailer has of course no engine, just a cheapest linear servo to lift it up or down.
