Here´s a preview of whats cooking right now! This is for the 1:10 OpenRC truggy which will feature a conventional shaft driven 4WD drive train.
Center Diff? How did you do the internal gearing? What size bearings are you designing for? Solid axles or four-wheel independent?
Diff is almost the same as this: http://www.thingiverse.com/thing:35104 except for some minor changes. The bearings that hold the diff are 10x15x4mm.
Oh, yeah and a center diff…