Yokomo Y4-503 Gear Diff set w/Input Shaft for YD-4

Gear differential unit for YD-4. A dedicated rear input shaft and differential oil (# 15000) are included, and can be used for both front and rear.
The gear case is hermetically sealed, and it is possible to obtain the optimal traction balance by adjusting the degree of the differential by changing the number of the oil to be filled in, and changing the performance in a variable manner.