On his Flickr photoset, Barman/ Barman76 posted six photos of his Lego Technic suspension idea for the 8110 Unimog U400 set's "ball joints" -- "Free to use the idea, modify it or improve": Do you think that the 2H2012 Lego Technic 9398 4x4 Rock Crawler set will use something similar to this setup? One can buy the necessary parts from "Lego Direct" (Lego Customer Service), using the guidance in this Eurobricks post.