1. you have to relieve any pressure in the fuel system
-a. you have to remove the fuel pump fuse; i don't know where it is exactly, but im sure you can find it since all of the fuse boxes are labelled.
-b. try to start the engine; it will stall. crank the engine a few more times, this will relieve any pressure in the fuel system.
2. fuel filter removal
-a. disconnect the negative battery cable from the battery: safety first
-b. find the fuel filter; its near the rear diff (i'm assuming you know what the fuel fiter looks like) and clean off any dirt that is on the inlet and outlet lines.
-c. take a phillips head screwdriver and loosen then detach the inlet and outlet lines. (have a rag ready, some fuel will start pouring out of the filter)
-d. finally, simply remove the mounting bracket bolt and remove the filter. you might want to mark one end so you know which way to put the new one in.
-e. after you have replaced it; clean up any fuel that might have spilled on parts of the truck.
-f. put the fuel pump fuse back and connect the negative terminal to the battery.
on a scale from 1-10, its a 1. its kinda like replacing your oil filter; very messy.
fuel filter looks kinda like this