OK so I am new to this forum but I am looking for some help and guidance, because I might have rose colored glasses on. First some background. I recently obtained a Ford E350 Glaval conversion van...
That van probably had a gcwr of around 16K when new. Max HP about 250'ish, maybe a few more hp. Torque mid to high 300lb ft, at best 400 or a hair over.
With this in mind, as I recall, it was rated to around 10K ball mount, then again, that is about the max for any given 2" receiver at the time! A pickup was upwards of 12K in 5w form.
With that in mind......I would say your performance was on par with what I had with BB GM's at the time.