TAC Tonneau Cover for 2004-2007 Chevy Silverado 5.8ft Bed (Classic) Tri-Fold Cover Bed Cover FITS PERFECTLY - Fit for 2004-2007 Chevy Silverado 5.8ft Bed (Classic) (Please contact us to confirm fitment before ordering.) SURFACE FINISH- Aluminum structure for durability and improve fuel mileage. It is an essential truck bed security accessory that can also improve your gas mileage by as much as 10%. OUTSTANDING DESIGN - TAC Trifold cover can be removed in seconds when you have oversized cargo or simply fold it forward to lock in place for smaller loads. Designed for featuring the security and convenience of adjustable tension controls and one-person operation, Water tight rubber seals keep moisture out. EASY TO INSTALL - Fast and easy DIY installation without any drilling or cutting. All mounting hardware and Installation instruction included. Trifold cover can be removed in seconds when you have oversized cargo or simply fold it forward to lock in place for smaller loads. NO-HASSLE WARRANTY - OE quality standard. 1-Year warranty against manufacturing defects!