Begin by sliding the two rubber o-rings onto right and left side of the sport bar open end of the tube.
Position one of the sport rack rails along the bed of the truck. Have your helper position the crossbar pipe into the corresponding hole.
Have your helper support the sport rack rail and crossbar pipe while you position the opposite side of the sport rack rail. Insert the crossbar pipe into the corresponding hole.
Make sure that the gap on each side of the crossbar pipe is minimal and seated evenly.
Begin placing bed rail pinch brackets at each of the corner positions underneath the bed rail. Tighten each of the bolts so that it locks the sport rack rail into position. Once tight the sport rack should not slide or rock.