Fuel filter replacement?

Welcome to the forum. Under the vehicle, driverside frame-rail, close to tank. Looks like threaded fitting on both ends. Make sure no pressure on system, before taking anything loose. If too much gas tries to run out of lines after filter removal, I plug the lines till ready with new filter, Don't forget to unplug lines. If you loosen the cap, it may or may not help, gas trying to drain. If you use a drop-lite, don't lay it where gas might drain on it.