[brcidd]

The lines that snap into the fuel punp assembly need to be disconnected at the top of the fuel pump- before you drop the tank entirely---they take a special half-mooned tool- like scissors- that will fit into the recesses and expand the garter spring, or clamp- and release the plastic fuel line-- if you are not careful you can snap off the fuel lines- either off the fuel punp or off the truck-- I highly recommend the metal tool as mentioned above-- Autozone or any other parts house has them- look for the ones labeled for GM (as well as others) you will have to wiggle it around to get the line to release properly-- but once you do one- you will undersatnd-- putting it together is a wisss-- just push it together-- that is why they are like that-- for the ease of assembly at the assembly plant-- time is money in an assembly plant and they save a few cents this way.....