rear differential question - sorta car related - sorta not

[Tim Holt <holtt@nacse.org>]

Humor me here :^)

OK - so if you were going to make a 4 wheeledd pedal powered (human 
powered) vehicle which was basically going to be just a few hundred 
pounds at the most, and it would have two wheels powering it, would you 
at all consider using the differential from a vehicle such as an MG to 
drive the two wheels?  That's assuming some kind of pedal/chain/gearing 
system was driving a main driveshaft, and then each wheel was off the 
differential.