My tailgate would hit the manual jack on my old "vintage" trailer and I would keep a strip of cardboard handy to put between the tailgate and top of the jack. However with my current one, using the WDH, I have plenty of room between the jack and tailgate. Even if I were to switch to an electric jack, I would still have plenty of room.
2006 Jay Flight 29BHS
1999 F350, XLT, 4x4, 6.8L V10, AT, CC, LB