This 2-piece 2-piece rocking arm rocker panel and cab corner accessory set is specifically designed for the extended cab cabin of CheChevy Silverado Silverado and GGMCMC Sierra Sierra 44 door models from 1999 to 20020077. The car model is designed. We use dual-use block materials to manufacture the rocking mechanism, which can effectively prevent the arm from blocking the board and the two bottom compartments of the vehicle and the corner driver's cab. The corner can effectively protect the vehicle from external factors such as stone body bottom, mud and water, and provide damage to the external parts, extending the long protection of the vehicle and the beauty of its service life. Fate passed. Simply adopting the installation height, this strong surface material board can be manufactured to achieve a perfect surface finish. After special treatment for your vehicle, it can restore the vehicle's excellent external resistance and enhance its rust and corrosion resistance. Endurance is a form of sexual cultivation. Installing an old and simple car will cause damage. After the damage, it is better to match the original car structure protection and upgrade it. This restored car is a must-have and optional feature for both you and your beloved car, bringing long-lasting durability to your Che vehicle's defense or G-protection MC performance. Performance improvement.