For truck topper clamps ladder rack clamps truck bed clamps and truck cap clamps. Truck Clamps for Mounting Caps Camper Shell Topper Canopy Heavy Duty Aluminum (4Pcs-Silver) The item is a set of 4 PCS truck bed camper shell which can meet your various installation needs provide convenience for your travel and is easy to install which greatly saves your time. The truck mounting clamp is used to install around the mounting bracket of a large camper or truck lower lip. The bolts can be tightened quickly with a wrench or a ratchet without drilling. 4pcs Aluminum Truck Clamps Mounting Caps Camper Shell Topper Canopy Compatible with Toyota Chevy Ford Dodge Ram Gmc Sierra Dakota Ram 1500 2500 3500 F150 F250 NISSAN 2 Packages Truck camper shells for pickup bed Compatible with CHEVY: Silverado / Sierra 1500 2500 3500.Compatible with Silverado / Sierra 07;Cargo Rail; DODGE: Dakota; Ram 1500 2500 3500; FORD: F150 F250; MITSUBISHI: Raider; NISSAN: Titan;TOYOTA: Tundra Designed for mounting truck caps with fiberglass or aluminum rails.