Cab Length Nerf Steps 99-16 F-250/350 Crew Cab Rough CountryRough Country's new Cab Length Nerf Steps provide unrelenting style and easier access to your truck. These steps extend the length of the cab of your truck, offering a clean install that lends to the look of your lifted truck. These steps can be installed on any vehicle, with or without a body lift. Our innovative design actually hides any exposed frame you see under the truck, offering extra protection for your rocker panels. Rough Country Nerf Steps