This is a ratchet locker differential, used in some 4x4 vehicles.
It's minded to be a "brother" for the Torsen Limited Slip Differential from @Pizzachef (https://www.thingiverse.com/thing:1722483), witch is also a remix from @Unotre (https://www.thingiverse.com/thing:356169).
You will need to print original pieces from @Pizzachef to complete.
Print 2 units:
Part3, Part4b, and Part5
For this Thing, you will also need:
6xDin 912 (M3x10mm Cilindrical allen screw)
25mm 1.75diam filament cut to join central hub with its axis.
Some grease (I used solid baseline)
2x 20mm Springs from old pens (softer, better)
08/08/2017 Updated minor changes to fit properly to the base.