I'm going to have to agree with everyone else those hooks are tight to the tanks. My hook up for the bars are right under the propane tank cover just slightly behind the tanks, so I have to remove the cover to hook up the bars. But I can say having the system makes a big difference, everytime I hook up I can see the weight move off the back and put the vehicle back to level.
600 pro series trunnion weight distribution with friction sway
I had looked at the X17Z and X19H at the same time. Both trailers they showed me the pro series trunnion, blue oz and husky wd systems. They would all fit just different price points and preference.
Hope all works out for you and you get to start enjoying that new trailer.
2014 Jayco X19H
2013 Ford Flex