I was out in the south Gobi desert in Mongolia a while back, and we had a flat tire on our vehicle. The guys I was with did not want me to help change it, they told me they had flats all the time. After they got the tire and wheel off, they knocked the truck off the jack and into the sand. I told them I wanted to use my PELI case as cribbing. They said no and went looking for rocks to use to jack the rig back up. While they were gone I took the jack, and using my case as a block changed the tire. I never had a doubt about the ability of the case to handle the load. They were astounded, (we had a lot of gear in the rig), but they are believers now!