Extang 38625 Full Tilt Snapless Hinged Tonneau Cover - fits Silverado/Sierra Crew Cab (5 ft 8 in) 04-06, 07 Classic Incredible Versatility; Roll Up, Lift Up, or Lift Off! Gas Shocks Easily Removed Using Ball And Joint Snap Release Hinged At Cab Rail For FullTilt Action Gull Wing Latches Secure Tonneau Without Restricting Cargo Space Vehicle Specific For A Perfect Fit