This is the down-scaled version of the Equal-i-zer hitch (made by the same company). As others have said, flipping it over may be what you need. But what I can tell you is the hitch you have is significantly underrated for your trailer. I would highly recommend getting at least a 1,400# system, most large manufacturers make them.
The TT I have on order is almost identical in weight to yours, and I also have an Excursion. With an Excursion (as opposed to an F-series truck), you run out of payload capacity pretty quickly, so the more weight you can transfer, the better. As mentioned, the bars are rated for ~1,000# tongue weight as a set. I just opted to order a Blue Ox SwayPro with 1,500# bars, and I plan to retire my Equal-i-zer with 1,200# bars. I would have upgraded to their 1,400# bars, but I would have had to upgrade the hitch head as well. On their 800-1,200 models, the bars are interchangeable.
2005 Ford Excursion 6.8L, 3.73
2016 Eagle 324BHTS, P3, PP 3P