The stabilizing bar provides additional strength to the front truck bed between the anchors and is highly recommended, or required with 8-1/2 foot or larger campers, 4 wheel drive trucks or extended cab trucks. This innovative component transforms HappiJac Tie-downs into a integral system that puts leverage to work for you and together with HappiJac Frame mount tie-downs these stabilizing bars combine frame strength to create an I-beam truss structure that restrains camper movement in any direction, literally making your camper one with the truck. Bar is usually used with the CA-UT8 tie-downs for the 1980 - 1998 Ford Trucks. Dimensions: 69 inch Long. 1 per package.