Let's me show you how the build a Destiny gear diff!

1) Start with differential case. I use sandpaper to remove material from sprue

2) Before putting o-rings, I always put a bit a green slime. So I'm sure differential will not leak.

3) Manual says to put oil on differential outdrive, but I prefer to use grease. I use old grease from Mr Roche.

4) Time for gears! Again I use sandpaper to remove material from sprue. I also use sandpaper on bottoms of gears, to make sure they are flat!

5) Now you can put all gears in differential case and fill it with oil. I always start with 5k. On high traction carpet, you can give a try to 7k or 10k

6) Now the differential is ready and should be really smooth! If differential is not smooth, open it and check everything!