How to remove truck bed correctly??

[1970ChevyChamp]

Hey all, I'm in the process of replacing the bed that is on my truck right now. I have never completed this action before and I was hoping some of you could get me started so I can do this the right way without screwing anything up to bad. The gas tank is behind the seat, and all wiring to lights work. Is the process of it as easy as taking apart the bed mounts, or is their more. I'd appreciate all feedback, Thanks!