Start by removing the original C hubs from both sides of the front axle on the YIKONG YK4107 RC Car. Then remove the steering knuckles, bearings, and related hardware.
Install the bearings and other components into the new C Hub Set (Part No. 21002) and reassemble them according to the factory configuration. Secure the parts using the original screws. During installation, make sure the left and right C hubs are positioned correctly to avoid affecting steering angle and suspension movement.
After installation, check that the steering system moves freely and that all screws are securely tightened without overtightening. Finally, perform a low-speed test to ensure smooth steering operation and proper function of the YIKONG YK4107 RC Car.