Hi being a newbe hear aand in rv'ing I see a lot of post's concerning towing with a half ton p/up I have a 2014 Ram 1500 with a 10/k hitch and with a 14150/bs GCVW my trailer is a 2007 forest river...
I've never seen door jam list tow rating. I think they meant this one:
Regardless, you are likely to hit that limit well under a 9200 pound tow rating. But it doesn't matter much now as you already got the pair. Scaled weights from 3 passes would help understand where you stand with respect to tow rating, GCWR, axle ratings, actual trailer tongue weight, and TW %.