I don't use a tailgate anymore.
Since I have a 5th wheel, I have a hitch, and aluminum V tailgate.
Take it off and no worries....
Measured my enclosed trailer, and just like the garage in my 5th wheel, I am too tall.
So just like putting it in the 5th wheel, I'll have to take off the roll cage and set it in the seating area. 9 bolts and it's on off.
The windshield and rear window will take longer....