Well the simple answer to that is.... It's just what I had at the time. I built a Dana 300 years ago and had a heck of a time finding one at that time, so I just went with the rover case that came in the truck. I was surprised to see when I was rebuilding it that it's actually quite beefy inside. Time will tell I guess if that was a good choice or not. Honestly, I have no intention of hard-core wheeling it. My plan was just to make a nice retro camping / exploring rig out of it.