How do you replace the fuel filter located on a 2002 Chevrolet 2500 HD?

Look on the frame rail underneath the drivers side. One end should have a nut that you can loosen, the other end should have a slip connector that you might have to have a special tool to remove, or sometimes can use a screwdriver to remove. It might spit fuel because it's under some pressure, so cover it with a rag just to be sure it doesn't spew in your eye.