Diamond C Trailers

Those vans are 5k lbs a piece. That trailer is 8k lbs tare weight probably at most. The 3500 is about 9k lbs loaded. Total is 32k lbs and we can add 1000 lbs just to be safe weight wise. So that would add up to 33k lbs.
Truck GVWR of 14k. Trailer GVWR probably 20k since its a Kaufman. 34k lbs GCVWR.
I would say the pin weight on the drive axle on the truck might be around 11k at most which is slightly over axle rating.
Stock 3500 has 235/80r17 wheels on and probably Load rating E. Load rating E is 3,085 for dual. 12,340 of tire rating on the drive axle, so its fine tire load wise.

Dot doesn't seem to have a clue of what the axle rating is on a Ram 3500. I've been pulled in at 37k lbs before and am registered for 41k lbs. Officer asked for my registration just to see if the 41k was really registered and not just a sticker on my truck and let me go. Didn't even check my tire rating. I have since changed wheels to 19.5 and now have over 15k lb rating on my drive axle tires. Havn't had any issues yet and passed 2 lvl 1 inspections in my 8 months of work.

 

It's kind of a silly thing on those 1-ton DRWs how they can handle 10k or better on the drive no problem based on the tire and axle ratings, but you do that and it's technically over on the vehicle GVWR since the steer will be up around 5k with a diesel engine. Just wondered if any of the chippier DOT states have ever bothered you about it but sounds like not. I notice on the 450/550 size trucks the GVWR more closely matches the actual capability of the truck.

 

As long as you don't go over axle ratings/tire ratings and/or over registered weight, it is a non issue.

The 450's 550's usually have 19.5 tires which raises the axle/tire weight rating.

I've heard that if you de-rate the trailer to stay under cdl say from 14,00 to 12,000, then load 14,000 on the axles which the tires and axle will carry, some dot officers will ticket you, but I have no first hand knowledge of that happening, just lunch counter chatter.