The S&B Body Mount Kit (81-1001) is a must-have for any 2003-2007 Powerstroke 5.4L, 6.0L, or 6.8L owner. This kit is specifically designed to improve the overall performance and durability of the body mounts on these vehicles. The body mounts are an important component of any vehicle, as they provide support and stability to the body. Over time, these mounts can wear out and become damaged, resulting in a rough and uncomfortable ride.