I use the smaller version to get in and out of the back of my camper when I’m out. I’ve never really had an issue on dirt or uneven terrain with mine. Granted it’s more square and not as tall, but it’s also what I used to help my ex who was overweight and had mobility issues from MS get in and out of mine. I added grab handles on the a pillar and over the door on the passenger side to give solid points to grab onto to get in with as well. Which wouldn’t be a bad idea in your case since these trucks have zero points to grab onto to help get in with.