Just FYI, if your tailgate feels heavy all of a sudden
one of your strut supports leaking and gone bad. I went to Auto Zone paid $65 for two and dealer wants $56? Each
so it was 5 mins to do. Prop your trunk door up
take flat head screw driver and pry under clip on top of the strut and pry it open a bit then pull off the pivot ball. Do same for bottom and it’s off. To put new one on just start at top and line hole in strut to the pivot ball and push it on and do same for bottom and do your other side.
Then I open my tail gate and it went up strong and easy with the new support shocks. Done !