HOW TO CHANGE A FUEL PUMP SENDING UNIT, IN GAS TANK?

THE FUEL PUMP IS INSTALLED INA 1999 GMC 1500 P/UHOW TO CHANGE A FUEL PUMP SENDING UNIT, IN GAS TANK?Get a repair manual for ~$20 at a parts store. Step by step instructions are in there, probably. Typically though, you have to drop the tank.HOW TO CHANGE A FUEL PUMP SENDING UNIT, IN GAS TANK?Disconnect the fuel tank and drop it out of the truck. Remove the old sending unit, replace it with the new one.HOW TO CHANGE A FUEL PUMP SENDING UNIT, IN GAS TANK?easier way if you have a few friends to help is to pull the bed. repair manual is a must as other guy stated, will help you out alot.