mkirsch,
I'm actually not the OP, just someone who joined in after it started. I do have kind of the same thing going on though.
*I* didn't select the bars, or set them up initially - the dealer did. And yes, I have some concerns about the way it ended up.
The listed GVWR for my trailer is 8800 lbs... I'm going to take a wild guess and say the dealer figured 10% of that and picked the 800-1200 lb bars. Given that this model has most of the water tanks forward of the axles, that might not be a good guess. Your suggestion about heavier bars might be spot on.
I don't have a scale weight with the WDH disengaged, but I do have ones with it hooked up, and just the truck on its own. I gotta say, the numbers I'm seeing don't make much sense. The front axle weights are pretty much the same regardless of trailer or no. The rear axle weight goes up a crazy amount with the trailer hooked up (with WDH) - like 1500-1800 lbs. But the combination of the trailer axle weight plus the additional weight on the rear axle doesn't seem plausible either, not without *all* the tanks full, which they are not
