I see quite a bit of wear on the leading edge of your L-brackets from friction against the spring bars. That tells me your bars are not horizontal and parallel with the trailer frame. IMO, you need to raise the hitch head a notch or two, then tilt the head back more to regain the tension on the bars. You may also need to lower the L-brackets one notch. Those adjustments will cut down on the bracket wear and on the forces that are bending the brackets - or some combination of the two. Simple physics. (And some knowledge from changing my Equal-i-zer to fit my Jayco from my Outback.) The beauty of the Equal-i-zer is the ease of setup and adjustment. Find a level spot to hook up, take your time, and get it set up correctly. You will like the improvements!
My Jayco dealer had mine set up wrong and I had to adjust it myself. Installation and setup instructions are found in the manual, which you can download and print out from the link that pawpaw provided. Those instructions will show you that the spring bars should be parallel to the trailer tongue frame.
A also use the Sway Bracket Jackets. They quiet a lot of the noise from the hitch and they become the wear item, instead of the metal bracket.
Just my opinion.
2015 Jay Flight 32RLDS Elite
2012 Chevy 2500HD Crew Cab LTZ (6.6L Duramax/Allison)
Equalizer Hitch (1200# bars)