I have the Jack-E-Up tongue jack removable base.
Since I flipped my TT axle, I had to flip my WDH shank, I.e., raising it.
Now, even with the Jack-E-Up, I have to pad the jack base or the tailgate will rest directly on the base when open. Still better than only being able to open the tailgate 20-30 degrees when connected to the TT.
Problem of my own making ;(
Point being, while the Jack-E-Up is a great product, It may not solve this problem depending on the WDH height.
If you blow up my signature pic, you can see how it will still interfere.
