2005-07. Rear. Reinforcement. w/o trailer tow. Bumper Cover Reinforcement. Steel bar that performs the function of a Bumper, but is concealed behind the Bumper Cover. Underlying structural component that provides rigidity to the Bumper Cover. Absorber. Assembly -. Cover center support. Cover Reinforcement Beam. Impact bar Reinforcement. Inner REINFORCED. Isolator. Reinforcement Rebar. Trailer Hitch.