If the gears feel too tight after installing the Rear Portal Housing on your YIKONG YK4107 RC Car, don’t assume there’s a problem with the parts right away. In many cases, it’s caused by the installation. Check that the gears are installed in the correct positions, the bearings are fully seated, the grease hasn’t been applied excessively, and the screws are tightened evenly. If one side is overtightened, it may slightly deform the portal housing and cause the gears to bind. Rechecking and adjusting the installation will usually restore smooth gear operation.
Where can I buy a metal rear portal housing upgrade for the YIKONG YK4107 RC Car?
If you’re looking to improve durability and off-road performance, you can purchase it here: Upgrade Metal Rear Portal Housing
