The OEM steering knuckle is one of the significant parts in the controlling pivot of the vehicle, which can make the vehicle run steadily and delicately transmit the driving bearing. The two hauls of the pin gap on the steering knuckle are associated with the clench hand molded parts at the two finishes of the front pivot through the boss, so the front wheel can divert a specific edge around the boss to turn the vehicle. So as to diminish wear, a bronze bushing is squeezed into the chassis parts steering knuckle pin gap, and the bushing is greased up by infusing oil into the oil areola introduced on the directing knuckle. So as to make the controlling adaptable, a heading is introduced between the lower ear of the directing knuckle and the clench hand some portion of the front hub. A change cushion is additionally introduced between the upper ear of the guiding knuckle and the clench hand molded part to modify the hole there between.