Drivers side frame rail. I don't think that it is your problem, since even clogged - it should try to start. Anyway, You'll need line wrenches to do it without stripping the line nuts and I believe a 1/2" socket to remove the bracket that holds the filter. Make sure you haven't had the key on for at least an hour for the pressure to slightly subside and have a drain pan since it holds a bunch of fuel. I sometimes wrap the line ends with paper towels and hold it level until it hits the pan...Joel