Buy this kit:
http://www.dieselorings.com/fuel-bowl-reseal-kit-1999-2003.html
Follow these directions:
http://www.guzzle7pt3.com/fbowl.php
Magnum could be right, these bowls are not made from billet steel or aluminum that will last forever. So make sure when you get the kit and tear it down, you inspect it carefully. Even it is bad, you can probably score a pretty good one from a member on here for a pretty good price. In which case, use your kit that you have already purchased to rebuild it before installing it.
Or you can make the decision to make the truck the way it should have been designed from the factory. With a prepump filter/water separator, then the pump/pumps, a post pump filter. A single line going up to the top of the motor, at that point splitting in two, one line going into the back of each head. One line coming out of the front of each head, joining back together and going through an independent, stand alone fuel pressure regulator. From there going back to the tank.
While expensive to buy, they are very well worth it. If you are patient, and good with fabricating, you can make your own for a lot less money. I had less than 150 bucks in mine. All hand bent brake line tubing (it is stainless steel, but not pretty shiny stainless steel), fittings from Home Depot and some that I had laying around, and a flaring tool.