Introducing the Dark Horse Chassis # Rocker Decals. These decals are designed to display your chassis number on the rear rocker, giving your ride a unique factory look. Made from high-quality vinyl, these decals are easy to install and color-matched to the existing OEM accents for a seamless finish. Whether you're showing off your car at a car show or cruising around town, these decals are the perfect addition to your Dark Horse Mustang.