If anyone has ever built a Craxxas you would see how there stuff over thought and overly complicated compared to everything else. This is done due to keep costs down with plastics. Removing a revo differential is like trying to solve the meaning of life. I will say its not a bad place to start because if you can build a craxxas you can build anything. The e revo diffs cannot handle lipo batteries. The best feature they have is the summit locking differentials done from the radio. Been a long time since I touch that brand. Never going back!