I have lifted the 8' bed on my Silverado several times when replacing the fuel pump.
8 bolts - 4 on each side, IIRC. Plus fuel filler neck and rear light wiring.
To do the fuel pump, you only need to remove the 4 on the driver side and just loosen the other 4.
I never removed it all the way although it's light enough to slide off by myself. But would really need more help to avoid damaging stuff, probably.
