mkirsch wrote:
Wouldn't be the first time a rig like that has hit the road with a family happily singing campfire songs all the way there and back again...
Assuming that your truck is in best possible mechanical condition with good tires that aren't too old, You'll be more than happy with it on the flat. Iowa's pretty flat isn't it?
The trailer shouldn't weigh 15,500lbs, that's just the GVWR, the capacity of the two 7000lb axles plus 1500lbs of it on the pin. Odds are it will have closer to 3000lbs on the pin just because of the way these things tend to be balanced, but a 3500 SRW should easily have 4000lbs of capacity before hitting the tire limit. It'll squat but you can get airbags for that.
Far far far more likely that you will simply be unhappy with how things handle LONG before the rig is "unsafe." With half a brain you should know it's unsafe within a few miles of your first drive. Nurse it home and address the issues.
My DRV is "Rated" at 21k. It actually weighs 24k with a 25% 6k pin weight. The 15,500# GVWR can EASILY be obtained and more!!! Many tandem axle 5er's have a 25% pin. NOT a smart choice to use this SRW with that RV.