Install
Unlimited Bed Rails: General Installation Instructions
Dry fit the Unlimited Bed Rail system by holding it up to against the flat portion of the inside of the bed to check for clearance and desired location. Using a marker (either a marking pen or piece of tape) to mark your desired location.
Check both the front and back limits of the Unlimited Bed Rail, for clearance of bed accessories and confirm proper functionality.
Using a common hand clamp to hold the Unlimited Bed Rail system in place, be sure it is not being placed to high or low on the bed rail cap, as this will effect the mounting nut and bolt being properly secured.
Once you are satisfied with the placement, make a center mark for each mounting hole to be drilled through the mounting holes of the Unlimited Bed Rail either with an appropriate center punch or marker. Use a small drill bit (1/8 inch or 3/16 inch) to run a pilot hole through the mounting holes.
Remove the Unlimited Bed Rail and finish drilling out the two holes using a 7/16 inch drill bit. Once the holes have been drilled out, check that any burs are cleaned up.
Place the Unlimited Bed Rail back up to be mounted using the hardware included. Start all the nuts and bolts but do not tighten until all the nuts and bolts have been placed and started. Once you have all the nuts and bolts started along the bed rail, go ahead and tighten them down.