This is a Hop-Up Option is for use with the TD4 chassis. The rigid aluminum differential nut allows precise adjustment of ball differentials used on the kit. A precision differential screw is included.
This durable aluminum differential nut (blue) and precision differential screw can be used in place of the kit standard plastic nut for superior precision.
Comes with the differential spring, thrust plate, and 1/16-inch steel balls.
Compatible with TD4 chassis cars.