Steve, There is only one little mark on the left side board. Actually I was hoping there would be more marks/dents on it so, that you can tell it has been used to haul dirt.

I could mark it up with a screwdriver but, that would be faking it...not
It was funny, when someone rolled the old Ford tonka dump truck they felt horrible and I just laughed because the entire truck is metal except for the axle housings so, rolling it won't hurt anything.
I was amazed that after all of my equipment being run by so many people only the bull dozer broke. The dozer is an easy fix too, the left drive wheel just needs to be re-glued to the hub. We were using the 4x4 tonka DT to push the Mack up the hill a couple times and I lost one of the headlights but, when I unloaded the 4runner yesterday I found the headlight laying on the floor!