My factory brinly sleeve hitch adapter is bent. I want to add a cross brace as shown in the picture:

I'm not sure how the after market sleeve hitch adapters are made. If they use heat to help in the bend process it can make a weak area. The picture is small-it shows what I want to modify.
Here is what happens when you don't have support on both sides of your sleeve hitch adapter:

The shinny areas was elogated holes.