GMCTD is using a fuel filter housing from a 2000-2002 24 valve Dodge Cummins. It is a top loader and 7 micron filters are available. The Fleetguard part number is FS19856 for the 7 micron filter. The 7 micron filter is intended for use in the 2003-2007 5.9L Dodge trucks with the CP3 injector pump, but will work in the 2000-2002 filter housing. You will need an in-tank or inline fuel pump because these housings don't have priming pumps. See links below:
viewtopic.php?f=5&t=29149http://www.genosgarage.com/product/fs19856/fuel-filtersI have seen the filter housings on eBay from $50 - $150.