I have found many earlier posts regarding the fuel filter change and how you have to take out the back seat and peel back the truck's skin to get at it, but it wasn't clear if that was for a simple filter change or for the upgrade in the earlier models. Other posts hint that you can SEE the filter if you remove the left rear wheel and wheel liner. But has anyone actually changed the filter themselves in a later (02) model? Or is this one of those things you let the experts do? Thanks for your help!