Differential
grabcad
My first attempt on the subject. I tried to make it 3d print friendly, however I am sure tolerances are way off, so please double check before you try to print.
Download Model from grabcad
With this file you will be able to print Differential with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Differential.