Washers that hold the bed on are starting to rust and started to look alot closer gotta couple of places on bed starting to rust the truck is almost never drove in the rain unless cought in the rain, Keep trk in carport dont understand....
Bob

 

I don't have that problem but the fix is not too hard. Just pull the bolts and fix the rusted areas and coat the bolts and washers. That should keep it from eating all the way through.

 

i think the bed is fiberglass, at least the sides are, so you should not have to worry about the bed rusting out...not sure about the bottom though.

 

The corrugated bottom is steel.