Feature:1. Premium Material: Made of steel and aluminum alloy materials, front and rear drive shaft is adjustable, rust proof, wear resistant, and has a higher and more stable transmission effect.2. Fine Workmanship: The rc car front and rear drive shafts have large and stable angles, and increased smoothness and angle design make the drive shafts more stable and powerful.3. Efficient Drivetrain: A more efficient drivetrain provides a smoother ride with smoother and more powerful front and rear driveshaft transmissions.4. Higher Load Carrying Capacity: The front and rear drive shaft CVDs have higher load carrying capacity and larger drive angles to maximize the power of the RC car.5. Easy Installation: The front and rear drive shafts are easy to install and disassemble, and the original plastic parts or damaged parts can be directly replaced to obtain higher strength.Specification:Item Type: Front and Rear Drive ShaftsMaterial: Aluminum Alloy, SteelWeight: Approx. 149g or 5.3ozOverall Product Length: Approx. 155mm or 6.1inAxle Size: Approx. 85x15mm or 3.3x0.6inTransmission Aluminum Tube Length: Approx. 70mm or 2.8inCup Length: Approx. 60mm or 2.4inApplication: Upgrade for Arrma 1 or 8 Kraton 4S.Package List:2 x Front and Rear Drive Shafts4 x Screws