This truck repair video shows you how to remove the bed from a Chevrolet C1500 W/T truck. This needs to be done to fix certain problems, in this case the fuel lines. Whatever reason you need to remove the bed from your Chevy, this video shows you how to do it properly.
You will need a tractor or other machine capable of lifting several hundred pounds safely to do this. Some common sense and plenty of help is also recommended. It is NOT just as simple as lifting the bed off with the tractor, as it will swing around and may hit/break something.
When you go to put the bed back on, use new hardware if the old stuff is rusty. It's worth the extra cost. Also make sure to use anti-seize compound on the threads...you will appreciate having done so if you ever have to do this again!