The innovative design of the HappiJac Tie-Down combines frame strength and sound engineering principles to create an I-beam truss structure that makes your camper an integral part of the truck, providing unsurpassed strength and security. Its Direct-to-Frame Mount is strong and easy to use. While other tie-downs may "hold your camper down," only HappiJac Tie-Downs prevent camper movement in all directions â up-down, side-to-side, and front-to-back. The 56.875" long HappiJac Universal Stabilizing Bar works with the Frame-Mount Tie-Down Kit. Use with FT-DR8 for 2008 RAM. 56.875"" long stabilizing bar Use with FT-DR8 for 2008 RAM | Lippert HappiJac 56.875" Stabilizing Bar