After extensive research HappiJac Company has perfected an innovative Frame Mount Tiedown System that controls all aspects of securing a camper to a truck. It combines the proven design of HappiJac tiedowns with their patented Direct-to-Frame mount, providing the customer with unsurpassed strength, handling, and ease of use. They are easily installed and have a high gloss black powder coated finish on the front anchors with a polished chrome finish on the rear tiedowns. Set includes: HappiJac Frame Mount tiedowns for front and rear along with the Patented centering guide lock system. (This does NOT include the HappiJac turnbuckles - sold separately). Also requires USB-010 (sold separately). Fits: 1999 - 2007 Chevrolet Silverado Trucks, 1999 - 2007 GMC Sierra Trucks, 1999 - 2007 GMC Sierra Classic Trucks. *NOTE: Please call with your vehicle information and we will be happy to help you find the correct fit for your truck.*