Careful, when you remove that black panel on the inside of the tail gate. It is really easy to have one of the green retaining clips fall into the hole that holds the clip on the tail gate itself. The green clips can be hard to buy/find..
Part number for the green clip is Mopar 0651 1829 AA (they cost about $.66 each)
They come in packs of 5 and part # for the 5 pack, is Mopar 0651 1829 AA - 005
This piece/part is a Tailgate Exhauster Mopar 68323649AB . Retails for about $8.00.