This refers to a specific aftermarket modification package designed to lower the ride height of a particular model year Chevrolet Silverado pickup truck. The “4/6” designation typically indicates the amount of reduction in inches for the front and rear of the vehicle, respectively. In this case, the front is lowered by approximately four inches, and the rear by approximately six inches.
The motivation for installing such a modification often stems from a desire to improve the vehicle’s aesthetic appeal by creating a more aggressive stance. Furthermore, lowering the center of gravity can enhance handling characteristics, potentially leading to improved cornering and reduced body roll. Historically, these kits have gained popularity within the automotive customization community, driven by trends in street truck styling and performance.