On a normal diff you can either have it free where it handles corners well and spins one wheel at the first signs of offroad or you can have it locked or limited slip where it will handle offroading great but the steering circle will be crap. The solution for this problem is the torsen diff. It has all the pros - the offroad abillity is great and the steering isn't compromised with the only con being the size of it. This is the smallest possible, its 6 studs wide and meshes perfectly with a 24 tooth crown gear. It has no reliability problems because its so simple and the rarest part in it is the turntable. Building instructions included. Feel free to comment and make suggestions!!!
I like your design, although my experience in Lego torsen taught me that a central support for the axles is required to make the differential work properly. I would be happy if you would take a look at my torsen twin c :)
Quoting Cristián Lávaque
I love how well you compacted the mechanism. Good job! I am still having a little trouble seeing how it comes together, do you have more pictures of how to build it? Thanks! :)
Well you build the last picture and then unite it like on the main photo and then you push out the two 3 stud axles (not needed) on which sit the 8 tooth gears closer to the turntable with two 5 stud axles(can be seen on the last picture). The worm gears touch but they are on different axles(coming from the left and the right wheel). Above and bellow the worm gears there is a pair of meshing 8 tooth gears and they represent the only thing that conects the two worm gears together. On the second to last picture and the one before everything is clear, but if you are still having problems you can download my ldd file, but if you dont have ldd, you can download and install it for free. Thanks for the comment and glad you like it!!!