How does a truck camper fit into a truck bed?

Tailgates add minimal support for most brands of campers. I believe Alaskan is the only brand that designs to leave the tailgate down. So, we remove our tailgates. They come off fairly easily and protects from rocks/road debris by being off and remove a bit of weight. Some campers cover the truck tail lights. Those have a hookup similar to a fifth wheel and some have proprietary connectors in the bed. To hold campers down, campers have tiedown mounts that attach to frame, bumper, or bed and tiedowns.

If you mention the model you are considering and your truck, we can give more specific information. You could also take a look at some youtube videos or brand videos.