Haven't been on here for a while but, I have a question I'd like to ask. I recently bought a '15 Ram Ecodiesel, and was wondering if there is a torsion bar assist on the tailgate. The reason I ask is because I see a rod, (about 3/8") running from one side to the other thru the bottom of the taigate. On the passenger side there is aa bolt that appears the secure the rod parhaps after adjusting tension. Anybody have a clue what this is?