Check these out

[DutchVDub]

I love the axle design, they show it at the 2min mark

http://www.youtube.com/watch?v=AAVEMMVilU0

 

[frankenstang57]

I like the non-sales pitch versions myself:

http://www.youtube.com/watch?v=mi8SlYGt0YM

http://www.youtube.com/watch?v=EaHtccTJQCM

http://www.youtube.com/watch?v=4pJyaDR3M4M

 

[Hypoid]

Clever design, I have to wonder what it takes to break one, and where it fails.

Then I got started on the other vids that were associated with it. There goes another night I should have spent out in the shop.

 

[mcantar18c]

Cool, looks almost like a TTB