well, it would help knowing what trailers you're looking at.
simply quoting a fictional "dry" weight isn't enough info, since no trailer weighs the brochure "dry" weight.
length, tongue weight, CCC weight, GVWR along with the "dry" weight.
even better would be the actual yellow sticker weight. that would be the weight when it left the factory.
as far as the older v-8 Explorer, they were fine paired with the right length/weight trailer. as long as a good WDH with built-in sway control was used, such as the Equal-i-zer or Reese Dual-Cam.