Good advice
I have a Cat 25 I tow every summer, 500 miles round trip. I now have an older Ford 250 with a 460, but for years I towed her fine with a Dodge 3/4 ton with a 318. The last time I brought her back I only had 7 cylinders, but no prob. The advice you got about your (and the trailer's brakes) and the tranny comments are excellent. The engine is no biggie....