1.The transmission housing is made of aluminum,with bright colors and beautiful appearance;
2.The internal gears are made of high quality steel to increase wear resistance and extend service life;
3.CNC machined piece with accurate data (16.6:1);
4.Replace the stock parts, more robust and durable;
5.Suit for TRX4M 1/18 RC Crawler Car;
6.Package includes:Gearbox Assembly*1 Accessory kit * 1