Where is a fuel pump located on a 1998 f250 pick up truck?

In the gas tank, And Fords are well known to have two fuel pumps, It (may?) have another pump on the frame under the driver seat area. If it has two, The one in the tank is A "lift" pump, The other is A "pressure" pump.,,,,,,,,,,,,,,,,,,,,,,, Either way there is one in the tank.