Download TOOLS REQUIRED FOR ASSEMBLY: 7/16″ wrench or socket 3/8″ wrench or socket #2 Phillips screwdriver Tape measure. The Bedlocker is designed to carry rainwater from the cover into the canister and then out through the drains. Most truck models have standard OE drain holes or plastic/rubber access ports in the front of the truck bed. Check to make sure your truck has the OE drain holes so that drilling into the sheet metal is not required. If drilling is necessary, be sure to check the underside of the truck bed for the best location. The holes should be located near the side and as far forward as possible. Use a drill bit suitable for sheet metal (such as a taper drill or step drill). Drill drain tube clearance holes at 3/4″ (19mm). This will need to be done before installing the cover. STEP 1: REMOVE CONTENTS & PLYWOOD PACKAGING Remove the canister and top cover from the box. Remove components from inside the canister. Perform a quick inventory to insure all parts are there. Using the wrench or socket remove the 2 bolts holding the plywood packaging supports on the ends of the canister. Discard plywood packaging supports and bolts. Locate the rail guide bolts in the hardware pack and install them in the two holes where the packaging bolts and plywood were just removed. Repeat on both ends of the canister. STEP 2: INSTALL WIRING HARNESS (If the optional wire harness Part# BL1120 is used, you may want to tape it to the main harness to ease having to pull them through the stake pocket separately). From inside the truck bed push the long wire harness end without the plug through the stake pocket on the drivers side of the truck and out the underside of the truck bed box. Leave a couple of feet of slack inside the box for mounting the electronics. Route the wire harness under the truck and to the battery in the engine compartment. Attach the fuse holder to the end of the Red/positive wire. (Do not attach to battery yet) Secure the harness with wire ties provided. HARDWARE USED: WIRE HARNESS x 1. STEP 3: INSTALL FOAM, FRONT RAIL BLOCKS & PLACE CANISTER. HARDWARE USED: Use the washers, lock washers and bolts provided and attach a front rail block to each side of the truck bed in the existing OE threaded holes approximately 4 inches from front of truck bed. Place the Front Rail Block angled side down against the truck bed. Place the Front Rail Blocks so that the top is level with the bed rail, then tighten securely (Figure 3A) You will need one or two support pieces (We suggest using the top of the box the Bedlocker was shipped in) to set in the truck bed. Set the support piece approximately one foot from the cab. Set the Canister on the support(s) in the truck bed. The canister should be resting on the support piece, centered in the truck bed, raising the top of the canister above the bed rails by 2-3 inches.