This is a dump truck with a dumping trailer that I made out of #4203 and #4434 (Excavator Transporter and Dump Truck). I had one dump bed left over from my dumpster truck mod and the other came when I modified my dump truck to be able to tow my arrowboard trailer; I made it a flat dump bed. That also allows the truck to carry it's large snow plow attachment.
Both dump beds lift and the tailgates open. In reality, however, the truck's dump bed wouldn't be lifted while the trailer was still attached!
The trailer detaches and has two stanchions to support itself without the truck.
The chassis of both truck and trailer are almost the same, and both have a trailer hitch on the back.
The trailer connections are all to the same specifications as my other trailers and vehicles with hitches so any trailer can be towed by any vehicle with a hitch. Here the dump truck is pulling my arrowboard trailer and the dump trailer is being pulled by my flatbed with it's snowplow on top.
As I mentioned before the dump trailer also has a hitch on the back so another trailer can be connected like a road train!
Thanks for checking this one out, let me know what you think!