$300 gets you the complete diff with tires (removed from a '76 Tioga motorhome) OR bring a battery and permit, do a little work on the Tioga and drive the whole thing away for $300! (It has a Dodge 360, Loadflite 727 and a bunch of other stuff.
For a link to pics and info http://www.snort4x4.com/forum/showth...&threadid=7952