I need to know where the fuel filter is on my truck? I have a 1987 Mitsubishi Mighty Max, 2.0 L. 2WD. 5spd, no air, has carb. I followed the gas line off the fuel pump to the frame rail. I did not see the filter unless its tucked in a cross member. Has anyone ever changed one? Or do they even exist? I have not looked around the gas tank yet.